So we updated our Unity Runtime and the warning for WarnIfDuplicateTrackIndex seems to not be implemented in a way that is really helpful? Maybe I'm not understanding the point correctly, but I ended up commenting it out for now.
The problem is that the code only checks if there are multiple SpineAnimationStateTracks in a timeline and if they share the same track index. However, we have multiple SpineAnimationStateTracks but they have different target skeletons so it's throwing false positives. Shouldn't it also check the track target objects before throwing this warning?