Cura supports not working since 4.1

[mechamecha 64]

Cura supports haven't worked for me since 4.1. With every new release, I hope that the bug I've experienced has been fixed, but it hasn't. Just tried 4.5, same problem. It's quite frustrating, because I'd like to take advantage of some of Cura's newer features, but I continually have to go back to 4.1 just to get reliable supports. Large areas of supports are just not being generated for the first several layers, so when Cura decides to finally generate them properly at a higher layer, they're not adhering to the bed. I've attached some screenshots below to clearly show this major problem which has persisted through multiple versions. I sure hope Ultimaker can finally fix this nasty bug soon.

 

 

[burtoogle 516]

Could you please provide the project file? Do File -> Save and attach the .3mf file to this thread. Thanks.

[mechamecha 64]

Sure! Thanks.

UM3_support_bug.3mf

[burtoogle 516]

As a workaround, setting the support stair step height to 0 appeared to help...

 

[mechamecha 64]

Excellent! Thank you so much! I guess I should've posted this problem here a long time ago instead of suffering in silence!

[mechamecha 64]

Hmm. It worked for the UM3, but not for UM2, unfortunately...

UM2_support_bug.3mf

[mechamecha 64]

Aha! But your solution had me check out other support settings that I had hidden. I set Support Stair Step Maximum Width to 0 which worked!

[AbsoluteRobotics 0]

Oh wow, thank you so much this had really been bugging me too! Great to finally have a workaround - hopefully someone will figure out the bug and fix it in due course...