Level Sequence Animations Broken after updating to 5.6

After updating from 5.4 to 5.6, when I open some level sequences I get the message “Duplicate corrupted controls found in level sequence, just keep first set of original Control curves (recommended but may revert to an older version)?”, and after selecting “yes” or “no” some controls are in incorrect positions or have incorrect values.

Anyone else experience this, or know any solutions to this without having to manually correct every animation in the game?

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Having the same issue! Tried creating a new level sequence and copying animations over with same error.

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I’m updating from 5.5 to 5.6 but I have the same issue.
It seams to be all sequences with a particular rig in it. So I think it has to do with the control rig and not the sequence itself. It happens on a handful of my rigs and I haven’t found a common pattern why it should happen to those specifically.
The error isn’t very detailed so I can’t see which controls causes the problem.

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