I too have this issue. I completed Trails of Cold Steel 2 and wanted to go back and play Trails in the Sky. I allowed Galaxy to update my installation. What a fucking mistake! It gave me a shit DirectX 9 version which runs like molasses but that is a separate issue. The opening video has been butchered with some god awful frame-interpolation technique to make a fake 60Hz video from a 30000/1001Hz video.
There's the obvious black boxes, horrible interpolation artifacts. I know it ain't the game, I know it ain't my DirectShow codecs/filters because I get the same crap plying the files on Linux using VLC and MPV
Who at XSEED allowed this to pass QA? Does anyone in this thread have a Twitter account and want to bitch at them? https://twitter.com/xseedgames
Tell them to bring back the old video that is 176822844 bytes large with md5sum 50cd32b0e5c3f1cb259b19a19f8068e3
I dread to find out what has happened with the other games.
I will just say that OP problem is still the same. Video is delayed, distorted and kind of strange to look at. Still no solution for this one? Like Downloading fixed video file or something?
If you have an old installer from before the update on 2017-05-04, use that. Otherwise have Galaxy roll back to an earlier version in More -> Settings. If you have an old backup then you can restore the file "ed6_op.avi"