System information

• SolveSpace version: Version 3.0 (3.0~0e0b0252)
• Operating system: MacOS 11.4 (20F71) (Intel CPU)

Expected behavior

Reproduce by opening the attached slvs file and move the sphere from the top
right (by clicking+holding its mid point with the mouse cursor) and drag the
selected sphere into the X-shaped body.

This should work without crashing and show solver issues visually.

Actual behavior

SolveSpace crashes.

Sometimes SolveSpace crashes very fast, sometimes the outlines are highlighted
red and it crashes shortly after this visualization happened.

Additional information

I attached:

• The .slvs file
• Stderr output from commandline as text file (program start until crash while doing exactly the one action which causes the crash)

model_and_stderr_output.zip