[BUG] Support Fan Speed Override crashes Slicing

[kulfuerst 6]

Hello everybody,

I am using @burtoogle's most recent Cura build (20190826). I noticed that enabling the Support Fan Speed Override inhibits slicing of the model. When the fan speed override is enabled, the slicing progress bar moves to about 50% and stays there for a moment, then it falls back to 0% and gets stuck there. Disabling the fan speed override restores function. What model is being sliced appears to not be of importance.

 

Please find attached my project file and the STL with which I noticed this error.

Nimble_Mockup_left.3mf Nimble_Mockup_left.stl

[kulfuerst 6]

Infill Fan Speed Override does not cause any problems. This bug is exclusive to Support Fan Speed Override.

[burtoogle 513]

Hello @kulfuerst. Yes, sorry about that. I discovered the crash myself today. I have fixed the bug already along with a workaround for an upstream bug and will create a new build now. Should be available tonight from the usual place.