Blank window when I Rotate the video

Hello. I've encountered a problem with my Flip Player and I believe this could have been since I've updated my Mac to El Capitan 10.11.6

I use this app to rotate and clip .MOV files - I've done this countless times without any trouble but recently I've encountered a problem when I rotate my videos. When I rotate the video 90° the window goes blank. If I rotate it 180° it will only display a small 'cropped' window of the original video. The blank window is now inhibiting me from trimming my video, because I can't see anything!

Does anyone know a fix for this?

I'm running  ver and it's telling me that I'm up-to-date.



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  • I've just noticed the update on the website to and downloaded it. It didn't resolve the matter.

  • I'm seeing the same issue on macOS 10.12.3.
    Fill out the support form, describe the issue and link to this forum thread. When you get the case number send them your screenshots.

    Flip4Mac Support Form

  • Already escalated this with them, not heard anything back from them. This is definitely a problem with the OS. It doesn't work in El Capitan or Sierra but works Mountain Lion and Yosemite. Unfortunately i've updated this mac past those OS's so I really need a fix for the current OS.

  • Given the OS's role it may take some investigation to determine how to fix. Sorry about that.

  • I believe you may be able to rotate in in QuickTime X as a workaround. The old Quicktime 7 can do that as well.

  • I am having the same issue.  Was it resolved?

  • Jennifer Kremer Hunter Fill out the above posted support form and ask for a status update. There's been no updates to Flip4Mac recently given it is not compatible with current macOS

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