When I export a Matinee Camera Animation via FBX and reimport that same FBX in another Matinee Actor, the X and Y axis of the animation are interchanged. I tried “bake all keys” with the same effect. Seems to be a bug?
Would you provide reproduction steps leading up to the Axis Change. This is so I can test this on my machine.
It’s this issue Why does a Matinee FBX Re-Import change the Coordinate / Curve Camera settings? - C++ - Epic Developer Community Forums
This is a long known issue that has not been handled yet. I have now opened a new bug that involves exporting a .fbx matinee animation and then immediately reimporting it. When you reimport your animation your x and y are interchanged.
The ticket number is UE-25836
I do not have an ETA for when or if this issue will be resolved. Thank you very much for reporting this to us.