Operating system: Linux-5.7.5-arch1-1-x86_64-with-arch 64 Bits
Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.82
Broken: version: 2.90.0 Alpha, branch: master, commit date: 2020-07-06 20:39, hash: rBe20171e59f48
Short description of error
Deleting a duplicated particle system from the modifier stack crashes Blender.
Possibly related to T74786 (?)
Exact steps for others to reproduce the error
0. load factory settings.
- Select the default cube and add a Particle System. (e.g. by adding a Particle System modifier)
- Hover the mouse over the PS-modifier in the stack and press Shift + D to duplicate.
- While still hovering over the modifiers, press X twice to delete both Particle System modifiers.
(This is how I can reproduce it 100% of the time. - When I discovered it, I only needed to delete one of the modifiers to cause the crash.)