Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: GeForce GTX 950M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 436.15
Broken: version: 2.81 (sub 4), branch: master, commit date: 2019-08-31 11:22, hash: rB82ef1edce4a2
Short description of error
OK, noticed the scroll bar in preferences seems to be invisible. Seems to work everywhere else. I loaded factory settings as a test and it still does it.
Exact steps for others to reproduce the error
Open preferences and go to addons.
Open preferences in separate window for it to start showing.