Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: Radeon (TM) RX 480 Graphics ATI Technologies Inc. 4.5.13586 Core Profile Context 19.12.3 26.20.15003.5016
Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-02-12 16:20, hash: rB77d23b0bd76f
Name: Material Library (0, 6, 0)
Short description of error
I can only create new libraries if I start blender as admin, but if I start as admin, that breaks other things. Could you add an option to specify where libraries are stored. I think this would be a good feature anyway, as I'd rather have my libraries stored where I keep all my other resources.
Moving the add-on manually to C:\Users\UserName\AppData\Roaming\Blender Foundation\Blender\2.82\scripts\addons fixed the issue. However it should obviously go there by default.
Exact steps for others to reproduce the error