FBX animation import errors

I’ve imported an animation from my art team and I’m getting errors on all of the joints. This is the first time I’ve seen it and can’t seem to find any information.

Error Track Tumor_Cell_JNT_1 did not yeild valid transform. Please report this to animation team.

Error Track Tumor_Cell_JNT_old contains invalid transform. Could not import the track.

Error Track Tumor_Death_Jnt_1 contains invalid transform. Could not import the track.

Error Track Tumor_Death_Jnt_2 contains invalid transform. Could not import the track.

Error Track Tumor_Death_Jnt_3 contains invalid transform. Could not import the track.

Error Track Tumor_Death_Jnt_4 contains invalid transform. Could not import the track.

Error Track Tumor_Death_Jnt_5 contains invalid transform. Could not import the track.

Can I get an explanation on what the errors mean? Then maybe we can figure out what’s causing it.