Operating system: Linux-5.4.0-24-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: GeForce RTX 2070 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.64
Broken: version: 2.83 (sub 13), branch: master, commit date: 2020-04-17 20:03, hash: rB76b3aac802f9
Worked: 2.82, 2.83 builds from roughly two weeks ago.
Short description of error
When working with a bunch of modifiers, the next modifiers in the stack disappear from the UI until it is collapsed.
I think the VertexWeightEdit modifier is the cause, but I'm not 100% sure.
I've attached a file that shows the problem.
Exact steps for others to reproduce the error
Hard to say when exactly it happens.
Usually only occurs when a number of modifiers have been added, I think having a VertexWeightEdit in the stack might be the issue, but it could be something else.
If you collapse the visible modifier in the attached file, the others show up and similarly disappear again when the top one is unfolded.