[bug] Update cover photo > upload photo doesn't work (EasySocial 2.1.4)

I've had a few members (doing beta testing) on the site say they cannot upload a cover photo direct from their profile page. It just loads the default black background again. This workflow is after they have signed up for an account but chosen not to upload an avatar and cover photo during registration but do it later after being approved.

The workaround so far has been to upload a new album photo and then choose it as the cover photo and that works fine.

Please advise. Thank you!