Hi @Charlie_Powell,
Have now got the log file, sorry for not posting it first. This was running in safe mode:
2020-08-10 12:06:53,057 - octoprint.plugin.core - INFO - Loading plugins from /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins, /home/pi/.octoprint/plugins and installed plugin packages...
2020-08-10 12:07:33,972 - octoprint.plugin.core - INFO - Found 15 plugin(s) providing 15 mixin implementations, 17 hook handlers
2020-08-10 12:07:35,753 - octoprint.server.heartbeat - INFO - Starting server heartbeat, 900.0s interval
2020-08-10 12:07:36,569 - octoprint.server - INFO - Intermediary server started
2020-08-10 12:07:36,593 - octoprint.plugin.core - INFO - Loading plugins from /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins, /home/pi/.octoprint/plugins and installed plugin packages...
2020-08-10 12:08:05,158 - octoprint.plugin.core - INFO - Found 15 plugin(s) providing 15 mixin implementations, 17 hook handlers
2020-08-10 12:08:36,195 - octoprint.startup - INFO - ******************************************************************************
2020-08-10 12:08:36,211 - octoprint.startup - INFO - Starting OctoPrint 1.3.10
2020-08-10 12:08:36,215 - octoprint.startup - INFO - ******************************************************************************
2020-08-11 09:33:37,661 - octoprint.plugin.core - INFO - Loading plugins from /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins, /home/pi/.octoprint/plugins and installed plugin packages...
2020-08-11 09:34:03,792 - octoprint.plugin.core - INFO - Found 15 plugin(s) providing 15 mixin implementations, 17 hook handlers
2020-08-11 09:34:04,566 - octoprint.server.heartbeat - INFO - Starting server heartbeat, 900.0s interval
2020-08-11 09:34:04,947 - octoprint.server - INFO - Intermediary server started
2020-08-11 09:34:04,958 - octoprint.plugin.core - INFO - Loading plugins from /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins, /home/pi/.octoprint/plugins and installed plugin packages...
2020-08-11 09:34:10,965 - octoprint.plugin.core - INFO - Found 15 plugin(s) providing 15 mixin implementations, 17 hook handlers
2020-08-11 09:34:11,355 - octoprint.filemanager.storage - INFO - Initializing the file metadata for /home/pi/.octoprint/uploads...
2020-08-11 09:34:11,374 - octoprint.filemanager.storage - INFO - ... file metadata for /home/pi/.octoprint/uploads initialized successfully.
2020-08-11 09:34:11,673 - octoprint.plugins.softwareupdate - INFO - Loaded version cache from disk
2020-08-11 09:34:25,583 - octoprint.util.pip - INFO - Using "/home/pi/oprint/bin/python2 -m pip" as command to invoke pip
2020-08-11 09:34:38,173 - octoprint.util.pip - INFO - Version of pip is 19.0.1
2020-08-11 09:34:38,189 - octoprint.util.pip - INFO - pip installs to /home/pi/oprint/lib/python2.7/site-packages (writable -> yes), --user flag needed -> no, virtual env -> yes
2020-08-11 09:34:38,200 - octoprint.util.pip - INFO - ==> pip ok -> yes
2020-08-11 09:34:38,244 - octoprint.plugin.core - INFO - Initialized 15 plugin implementation(s)
2020-08-11 09:34:38,328 - octoprint.plugin.core - INFO - 15 plugin(s) registered with the system:
| Action Command Prompt Support (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/action_command_prompt
| Announcement Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/announcements
| Anonymous Usage Tracking (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/tracking
| Application Keys Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/appkeys
| Backup & Restore (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/backup
| Core Wizard (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/corewizard
| CuraEngine (<= 15.04) (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/cura
| Discovery (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/discovery
| Force Login (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/forcelogin
| Logging (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/logging
| Pi Support Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/pi_support
| Plugin Manager (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/pluginmanager
| Printer Safety Check (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/printer_safety_check
| Software Update (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/softwareupdate
| Virtual Printer (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/virtual_printer
2020-08-11 09:34:38,515 - octoprint.environment - INFO - Detected environment is Python 2.7.13 under Linux (linux2). Details:
| hardware:
| cores: 1
| freq: 700.0
| ram: 122224640
| os:
| id: linux
| platform: linux2
| plugins:
| pi_support:
| model: Raspberry Pi Model B Rev 1
| octopi_version: 0.16.0
| python:
| pip: 19.0.1
| version: 2.7.13
| virtualenv: /home/pi/oprint
2020-08-11 09:34:38,591 - octoprint.server - INFO - Reset webasset folder /home/pi/.octoprint/generated/webassets...
2020-08-11 09:34:38,609 - octoprint.server - INFO - Reset webasset folder /home/pi/.octoprint/generated/.webassets-cache...
2020-08-11 09:34:41,333 - octoprint.server - INFO - Shutting down intermediary server...
2020-08-11 09:34:41,829 - octoprint.server - INFO - Intermediary server shut down
2020-08-11 09:34:41,850 - octoprint.events - INFO - Processing startup event, this is our first event
2020-08-11 09:34:41,865 - octoprint.events - INFO - Adding 0 events to queue that were held back before startup event
2020-08-11 09:34:41,887 - octoprint.filemanager - INFO - Adding backlog items from all storage types to analysis queue...
2020-08-11 09:34:41,916 - octoprint.filemanager - INFO - Added 0 items from storage type "local" to analysis queue
2020-08-11 09:34:42,138 - octoprint.plugins.discovery - INFO - Registered 'OctoPrint instance on octopi' for _http._tcp
2020-08-11 09:34:42,248 - octoprint.plugins.discovery - INFO - Registered 'OctoPrint instance on octopi' for _octoprint._tcp
2020-08-11 09:34:42,282 - octoprint.plugins.discovery - INFO - Registered OctoPrint instance on octopi for SSDP
2020-08-11 09:34:42,516 - octoprint.server - INFO - Listening on http://127.0.0.1:5000
2020-08-11 09:34:44,756 - octoprint.plugins.announcements - INFO - Loaded channel _important from https://octoprint.org/feeds/important.xml in 1.9s
2020-08-11 09:34:45,051 - octoprint.plugins.pluginmanager - INFO - Loaded plugin repository data from https://plugins.octoprint.org/plugins.json
2020-08-11 09:34:54,026 - octoprint.plugins.announcements - INFO - Loaded channel _releases from https://octoprint.org/feeds/releases.xml in 1.4s
2020-08-11 09:34:57,997 - octoprint.plugins.announcements - INFO - Loaded channel _blog from https://octoprint.org/feeds/octoblog.xml in 1.5s
2020-08-11 09:35:02,411 - octoprint.plugins.announcements - INFO - Loaded channel _plugins from https://plugins.octoprint.org/feed.xml in 1.7s
2020-08-11 09:35:12,333 - octoprint.plugins.announcements - INFO - Loaded channel _octopi from https://octoprint.org/feeds/octopi.xml in 3.2s
2020-08-11 09:35:18,924 - octoprint.plugins.pluginmanager - INFO - Loaded plugin notices data from https://plugins.octoprint.org/notices.json
2020-08-11 09:35:19,727 - octoprint.util.pip - INFO - Using "/home/pi/oprint/bin/python2 -m pip" as command to invoke pip
2020-08-11 09:35:19,741 - octoprint.util.pip - INFO - pip installs to /home/pi/oprint/lib/python2.7/site-packages (writable -> yes), --user flag needed -> no, virtual env -> yes
2020-08-11 09:35:19,754 - octoprint.util.pip - INFO - ==> pip ok -> yes
2020-08-11 09:35:34,407 - octoprint.util.pip - INFO - Using "/home/pi/oprint/bin/python2 -m pip" as command to invoke pip
2020-08-11 09:35:52,555 - octoprint.server.util.flask.PreemptiveCache - INFO - Adding entry for / and {'query_string': 'l10n=en', 'path': u'/', '_count': 1, '_timestamp': 1597134952.554238, 'base_url': 'http://192.168.0.19/'}
2020-08-11 09:37:01,160 - octoprint.util.pip - INFO - pip installs to /home/pi/oprint/lib/python2.7/site-packages/ (writable -> yes), --user flag needed -> no, virtual env -> yes
2020-08-11 09:37:01,182 - octoprint.util.pip - INFO - ==> pip ok -> yes
2020-08-11 09:37:01,593 - octoprint.plugins.softwareupdate - INFO - Saved version cache to disk
2020-08-11 09:37:02,350 - octoprint.server.preemptive_cache - INFO - Preemptively caching / (ui _default) for {'query_string': 'l10n=en', 'path': '/', 'base_url': 'http://192.168.0.19/'}
2020-08-11 09:38:57,305 - octoprint.server.preemptive_cache - INFO - ... done in 114.96s
2020-08-11 09:39:42,300 - octoprint.server.util.flask.PreemptiveCache - INFO - Adding entry for / and {'query_string': 'l10n=en', 'path': u'/', '_count': 1, '_timestamp': 1597135182.299506, 'base_url': 'http://octopi.local/'}
2020-08-11 09:49:04,596 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-08-11 10:01:15,956 - octoprint.server - INFO - Shutting down...
2020-08-11 10:01:16,413 - octoprint.events - INFO - Processing shutdown event, this will be our last event
2020-08-11 10:01:16,709 - octoprint.events - INFO - Event loop shut down
2020-08-11 10:01:17,540 - octoprint.server - INFO - Goodbye!
2020-08-11 10:01:58,963 - octoprint.startup - INFO - ******************************************************************************
2020-08-11 10:01:59,001 - octoprint.startup - INFO - Starting OctoPrint 1.3.10
2020-08-11 10:01:59,004 - octoprint.startup - INFO - Starting in SAFE MODE. Third party plugins will be disabled!
2020-08-11 10:01:59,029 - octoprint.startup - INFO - ******************************************************************************
2020-08-11 10:02:26,664 - octoprint.plugin.core - INFO - Loading plugins from /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins, /home/pi/.octoprint/plugins and installed plugin packages...
2020-08-11 10:02:48,987 - octoprint.plugin.core - INFO - Found 15 plugin(s) providing 15 mixin implementations, 17 hook handlers
2020-08-11 10:02:49,753 - octoprint.server.heartbeat - INFO - Starting server heartbeat, 900.0s interval
2020-08-11 10:02:50,077 - octoprint.server - INFO - Intermediary server started
2020-08-11 10:02:50,088 - octoprint.plugin.core - INFO - Loading plugins from /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins, /home/pi/.octoprint/plugins and installed plugin packages...
2020-08-11 10:02:56,033 - octoprint.plugin.core - INFO - Found 15 plugin(s) providing 15 mixin implementations, 17 hook handlers
2020-08-11 10:02:56,431 - octoprint.filemanager.storage - INFO - Initializing the file metadata for /home/pi/.octoprint/uploads...
2020-08-11 10:02:56,450 - octoprint.filemanager.storage - INFO - ... file metadata for /home/pi/.octoprint/uploads initialized successfully.
2020-08-11 10:02:56,828 - octoprint.plugins.softwareupdate - INFO - Loaded version cache from disk
2020-08-11 10:03:11,695 - octoprint.util.pip - INFO - Using "/home/pi/oprint/bin/python2 -m pip" as command to invoke pip
2020-08-11 10:03:25,626 - octoprint.util.pip - INFO - Version of pip is 19.0.1
2020-08-11 10:03:25,650 - octoprint.util.pip - INFO - pip installs to /home/pi/oprint/lib/python2.7/site-packages (writable -> yes), --user flag needed -> no, virtual env -> yes
2020-08-11 10:03:25,666 - octoprint.util.pip - INFO - ==> pip ok -> yes
2020-08-11 10:03:25,747 - octoprint.plugin.core - INFO - Initialized 15 plugin implementation(s)
2020-08-11 10:03:25,840 - octoprint.plugin.core - INFO - 15 plugin(s) registered with the system:
| Action Command Prompt Support (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/action_command_prompt
| Announcement Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/announcements
| Anonymous Usage Tracking (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/tracking
| Application Keys Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/appkeys
| Backup & Restore (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/backup
| Core Wizard (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/corewizard
| CuraEngine (<= 15.04) (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/cura
| Discovery (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/discovery
| Force Login (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/forcelogin
| Logging (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/logging
| Pi Support Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/pi_support
| Plugin Manager (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/pluginmanager
| Printer Safety Check (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/printer_safety_check
| Software Update (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/softwareupdate
| Virtual Printer (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/virtual_printer
2020-08-11 10:03:26,026 - octoprint.environment - INFO - Detected environment is Python 2.7.13 under Linux (linux2). Details:
| hardware:
| cores: 1
| freq: 700.0
| ram: 122224640
| os:
| id: linux
| platform: linux2
| plugins:
| pi_support:
| model: Raspberry Pi Model B Rev 1
| octopi_version: 0.16.0
| python:
| pip: 19.0.1
| version: 2.7.13
| virtualenv: /home/pi/oprint
2020-08-11 10:03:26,111 - octoprint.server - INFO - Reset webasset folder /home/pi/.octoprint/generated/webassets...
2020-08-11 10:03:26,259 - octoprint.server - INFO - Reset webasset folder /home/pi/.octoprint/generated/.webassets-cache...
2020-08-11 10:03:29,861 - octoprint.server - INFO - Shutting down intermediary server...
2020-08-11 10:03:30,340 - octoprint.server - INFO - Intermediary server shut down
2020-08-11 10:03:30,361 - octoprint.events - INFO - Processing startup event, this is our first event
2020-08-11 10:03:30,377 - octoprint.events - INFO - Adding 0 events to queue that were held back before startup event
2020-08-11 10:03:30,403 - octoprint.filemanager - INFO - Adding backlog items from all storage types to analysis queue...
2020-08-11 10:03:30,425 - octoprint.filemanager - INFO - Added 0 items from storage type "local" to analysis queue
2020-08-11 10:03:30,614 - octoprint.plugins.discovery - INFO - Registered 'OctoPrint instance on octopi' for _http._tcp
2020-08-11 10:03:30,719 - octoprint.plugins.discovery - INFO - Registered 'OctoPrint instance on octopi' for _octoprint._tcp
2020-08-11 10:03:30,771 - octoprint.plugins.discovery - INFO - Registered OctoPrint instance on octopi for SSDP
2020-08-11 10:03:30,973 - octoprint.server - INFO - Listening on http://127.0.0.1:5000
2020-08-11 10:03:30,986 - octoprint.server - INFO - Server started successfully in safe mode as requested from config, removing flag
2020-08-11 10:03:32,182 - octoprint.plugins.pluginmanager - INFO - Loaded plugin repository data from disk, was still valid
2020-08-11 10:03:51,430 - octoprint.plugins.pluginmanager - INFO - Loaded notice data from disk, was still valid
2020-08-11 10:03:57,403 - octoprint.util.pip - INFO - Using "/home/pi/oprint/bin/python2 -m pip" as command to invoke pip
2020-08-11 10:03:57,426 - octoprint.util.pip - INFO - pip installs to /home/pi/oprint/lib/python2.7/site-packages (writable -> yes), --user flag needed -> no, virtual env -> yes
2020-08-11 10:03:57,436 - octoprint.util.pip - INFO - ==> pip ok -> yes
2020-08-11 10:03:57,887 - octoprint.server.preemptive_cache - INFO - Preemptively caching / (ui _default) for {'query_string': 'l10n=en', 'path': '/', 'base_url': 'http://192.168.0.19/'}
I am running the last version of octoprint (0.16.0) to see if it would help. Spoiler; it didn't. Same issue as 0.17.0