System Information
Operating system: Windows-1064Bit
Graphics card: AMD Radeon HD 7800 Series ATI 19.12.1

Blender Version
Broken: version: 2.83 (sub 5), branch: master, commit date: 2020-02-28 16:45, hash: rB85f980c517e4

Short description of error
Area light has weird rectangle when you hover over the light.