Operating system: Darwin-19.6.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon Pro Vega 48 OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.10.18
Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-10-06 20:17, hash: rB099ce95ef36d
Worked: (newest version of Blender that worked as expected)
Short description of error
[Please fill out a short description of the error here]
Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]
Selected mesh to scale. Clicked s, x to scale on X and got this "lightening bolt". On second click on x, the more normal X indicator appears but is thicker than normal. IF I try dragging to scale using the first indicator the object scales sometimes erratically and then the whole mesh disappears from the screen ("to infinity and beyond") and must be selected in the Collection and Home and Dot to find again.
None of this happens in Layout mode and doing the same thing with Edit under Layout mode acts normally. Modeling mode hates my GPU!