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ShockwaveWhisper
Participant
Apr 29, 2026 4:34 PM UTC
Needs More Info

Object Mask Tool - Doesn't work with flipped footage

When using “flip horizontal” effect on a clip in a sequence, the object mask tool detects the object but masks it as if the clip has NOT been flipped. You can see in the image it’s masking correctly, but since the footage has been flipped, it’s showing the mask from the pre-flipped footage.

 

    3 replies

    IanB_360
    Community Manager
    Community Manager
    May 1, 2026 11:11 PM UTC

    Hi ShockwaveWhisper
    Currently, the best workaround is to use the steps Ann Bens has suggested. You'll first need to mask and track, nest the clip, and then apply the Horizontal Flip effect. Or you can Horizontal flip, then nest, and apply a mask. 
    This is the intended behavior, but we can try to make it a future request.
    Here to help.
    Ian

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    Ann Bens
    Community Expert
    Community Expert
    Apr 29, 2026 7:38 PM UTC

    I believe masking only works on original orientated clips.

    Mask, nest, then flip.

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    R Neil Haugen
    Legend
    Apr 29, 2026 4:37 PM UTC

    Woa ... not seen that, but I’ve not flipped something. I hope someone else test this out immediately!

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    Everyone's mileage always varies ...