After scanning my folder for the files I have saved, a couple end up in the Error Log as "Unable to load metadata" & "Error importing movie <name>"
I tried copy + pasting the same movie and deleting the first file, doesn't fix the error. And I'm not sure what's wrong with the metadata one. The original files work fine, and the naming scheme doesn't seem like the issue, as the browser managed to detect and identify other files of similar naming schemes.
Could you send me your log files? Go to Settings, scroll down to bottom, and press the "Copy log files to..." button to copy and zip up the logs, then you can send a message to me and attach that zip. Feel free to also attach one of the metadata files that's causing problems for JavLuv as well.