Right now Blender doesn't support exported FBXs to recognise animation keys on any visible/hidden channels on a rig.
And this is just a Blender issue.
(Maya supports visibility keys in FBX exports).
Blender not supporting visibility keys is actually stated in the Blender docs: "Blender does not export the visibility value inside animations in the FBX file." Link here
I'm just wondering if anyone has a way around this?
Is there a script I can use, or something else I can tag that is exportable? Any work around suggestions you have I'd be very grateful to receive.
I never like it when Maya beats Blender at anything, so I hope the devs can solve this one. Unity is a patron member of the Blender Foundation, so I hope something happens from that relationship.
In the meantime, I'll take whatever suggestions you have. Thank you!