Bug 446503

Summary: Step freezes when you set a certain value to 0
Product: [Applications] step Reporter: LissoBone <koreagleb>
Component: generalAssignee: Vladimir Kuznetsov <ks.vladimir>
Status: REPORTED ---    
Severity: crash    
Priority: NOR    
Version First Reported In: 21.08.3   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: these are the exact conditions at which the event occurs

Description LissoBone 2021-12-05 08:12:37 UTC 
Created attachment 144227 [details]
these are the exact conditions at which the event occurs

SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***
I tried this in different conditions and sequences, but the freeze should generally work if the particle is anchored (and maybe attached to a spring)

STEPS TO REPRODUCE
1. Launch step.
2. Take a particle.
3. Anchor it.
4. Set its mass to 0.
5. Try to launch the simulation.
OBSERVED RESULT

Step stops responding

EXPECTED RESULT

I am not sure what I was expecting, but I think I wanted to eliminate any gravitational influence on the spring while having it anchored (the dumbest idea, but ok)

SOFTWARE/OS VERSIONS
Windows: no
macOS: still no
Linux/KDE Plasma: Arch Linux with KDE plasma.
(available in About System)
KDE Plasma Version: 5.23.4
KDE Frameworks Version: 5.88.0
Qt Version: 5.12.2

ADDITIONAL INFORMATION

the