Operating system: Mac OSX 10.14
Graphics card: AMD Radeon R9 M295X 4096 MB
Broken: version: 2.80 (sub 35), branch: blender2.8, commit date: 2018-12-01 23:15, hash: 8c620c8e2b3, type: Release
build date: 2018-12-02, 01:36:33
Top and bottom strips (horizontal across entire screen) flicker after saving with CMD + S
Save scene with CMD + S
Do you see flicker on top and bottom headers?