[BFW-6578] [BUG] Filament runout hangs or doesn't feed filament if object is canceled

[danukefl]

Printer model

Mk3.9S

Firmware version

6.2.0-alpha2

Upgrades and modifications

No response

Printing from...

USB Drive

Describe the bug

When printing multiple objects, if one object is canceled and later in print, the filament runout triggers a filament change, at least two issues occur. I've had both a failure to detect the filament is unload, but also where it won't feed the new filament (both during first load and purge more options).

I've tested:

• two different prints
• with two different objects
• different USB drives
• runout before canceling an object works

How to reproduce

1. Start print with 2 or more objects
2. Cancel one of the objects
3. Cut filament off and let it trigger the filament runout sensor
4. Now either filament the filament won't detect the unload or won't feed the new filament if it does detect the unload.

Expected behavior

Expected to be able to perform a filament change as normal.

Files

No response

[CZDanol]

Hello, thanks for the report. Created an internal ticket BFW-6578.