Users are reporting they get a message "file size error" despite the file size being configured to unlimited. Server file size setting is set at 2gb.
File size error when uploading a video in messages
14 days later
Are you experiencing this error in latest version of Jomsocial 4.9.5? as I remember we fixed this error in previous version already.
If it still has issue, you can share me the file and clarify the step to replicate this issue on your site so I can help you out.