I have After Effects version 17.0.1
i have 8GB of ram in single channel DDR4
with a Ryzen 5 3400G (Vega 11 integrated APU) - Not external/dedicated GPU
and the preview is not playing anythings
it kinda remember me the old Windows XP days when you can duplicate de windows and create a rainbow of bugged weird-looking thing, you know....
It seems like a GPU problem, i indeed have the very last driver updates from AMD, i treid three different version included 2017, 2018 and this 2020, i removed the User Files and reinsitall it multiple times, i delete the folders in Program Data and AppData, only need to reinstall windows but at this point im not doing that tbh, and deactivate the GPU acceleration and non of that solve the problem... also look into the AE config.txt and put and 1 instead of an 0 in the Preview Video section under Spacebar control category...
If anyone here achieve fix this bug, im very glad to hear you.
If you need more espeficications just ask and i will post them.
AdChoices