What is the problem?
The Octoprint UI does not show the existing files on the printer SD card.
What did you already try to solve it?
The M20 command in the terminal is showing the printer SD card files. So the files are there.
Updated to the latest version of Octoprint (version 1.4.2) and all of the plugins.
On UI :refresh SD card -> no result
No filters on the "file list settings"
Any idea what is going wrong ?