When I play (or try to) a video file, I get the warning, that an “error occured due to internal data-flow error”.
This happens with ALL video formats I tried (avi, wmv, mkv, mp4 etc).
This behaviour is new. Because of it, I did a completely new installation for Antergos but it still persists.
I am using an Dell e7440 notebook with an intel-gpu (hasswell).