There is one other thing I just thought of. I haven’t seen this happen in a long time but it is a possibility for sure. I have seen where the Photoshop security “token” for a particular folder gets corrupted and it won’t access files from a particular folder. In Adobe’s new plugin menu platform, plugins can only access files with user’s permission. The permission is granted when you click the source folder button and select a folder. Photoshop then assigns a security token to that folder so the plugin is allowed to open files from it.
When this gets corrupted, the only way I have seen to fix it is rename the folder. So try renaming the folder that has the player images and see if that fixes the issue. Just give it any other name. then Adobe’s will assign a new token when you select the folder.
Let me know if this fixes it.