Getting “unable to determine file format” too often

Hello,

if you have too many video on the page which are being checked, an issue like this might arise as the server might take longer to respond. We are re-working the video checker, so this will be improved.

In the meantime we put in a fix into the current version 2.2.3, so if you just re-install it from WordPress.org, you will get the fix.

Thanks,
Martin