SOLVED: EKG/Soundwave replaces poster and background

[pyrusmole]

This only seems to have happened to certain movies (so far). After some time, the images for a movie will be replaced by the weird EKG/Soundwave picture that you see below. I haven't been able to determine any root cause but it only looks like it effects certain movies. Refreshing the metadata will only temporarily fix the issue. Same with uploading my own images. After a period of time, they just break.

   

Any help or advice would be greatly appreciated.