Recurrence of Old Bug?

Running "OctoPrint 1.3.9 running on OctoPi 0.14.0"

There was an issue where cancelling a print would cause OctoPrint to appear to have hung, but this was fixed in one of the 1.3.9 RC's. but unfortunately it appears as though the bug is back ?

Anyone else seen it ?

Can you share logs? serial.log especially.

Attached, hopefully....

octoprint.log (51.5 KB)
serial.log (18.2 KB)

I saw this... only I caused it myself.

My Gcode script at the end of a jump was running an aplay command which was a blocking call. It didn't return control within three seconds and screwed up OctoPrint's timing.