Thanks for tracking this down everyone. I will see if there's a way to check for this and use a workaround for bevel that avoids using the linear solver if this problem exists. But likely there…
Looking at a similar crash dump in imagemagick, I wonder if the issue is similar to what is discussed there -- that MacOS has an open MP…
Erick-Phillips: I have an M3max too (but MacOS 15.0.1), and can't make it crash. Does it happen for you on the current Alpha build? https://builder.blender.org/download/daily/
I tried it on Blender 4.2.3 (the LTS) on MacOS 15.0.1, on a Macbook Pro with M3 silicon. It didn't crash.
The crash log shows it crashing in the Eigen routine that is called when trying to…
Sorry for the long delay. I finally had a chance to look at this and check the math. I agree with the math for the non-slide case (thanks for the diagram). I couldn't follow the math for the…