System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: Intel(R) HD Graphics Intel 4.3.0 - Build 20.19.15.4835

Blender Version
Broken: version: 2.81 (sub 1), branch: master, commit date: 2019-08-03 20:22, hash: rB85a7cebd537d
Worked: (optional)

Short description of error
after Boolean was applied change to edit mode …. works with middle mouse button ….but{F7648390} if left or right mouse clicks alpha crashes

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)]