Apparently in Map Editor, if you have 15 and under amount of clips in MediaTracker with different replays/camera paths, they will work accordingly. Any over than that, and Race Cams or any other Camera Paths with targets in them in clips 16+ will not be working anymore.
This is a big issue for longer maps (like Trials) that want to have a GPS for every Checkpoint possible.
Reproduction:
I made a test map with 18 clips, each having their own triggers and placed in rooms positioned in rows for a proof of concept.
Every clip in the map, except 17 and 18, have been set up like following:

Expected Behavior at clips 1 to 15
Unexpected Behavior at clip 16+
From what I've noticed, is that Custom Camera and Camera Path lose the Target and Anchor, setting them to the origin of the map.
Camera Race doesn't work at all, except for the Camera setting. Meaning that, if you've set it to Internal, the player camera will be set to Internal also, but the target doesn't switch to the one we've set it to.
As I mentioned before, Clips 17 and 18 are a bit different from others. I experimented with them to see, what happens to targets and anchors in Camera Path and Camera Custom. And seems like they do lose their references also.
The proof-of-concept map where I played around with this can be found here
Hopefully this thread can get some traction and help the issue to be fixed sooner, since this, as I mentioned earlier, is really annoying for creating more complex Trials maps
