Falling through the map and dying at the end of each round/when pressing "End Game."

Since the update yesterday, every time a round ends in my map, I fall through the ground and die just before the new round starts. It even happens when testing in-game and hitting "End Game" to go back to building mode. The new round starts correctly, but because you die in between, you lose everything in your inventory (which building up resources is kind of the point of each round).

This is definitely because of something that changed in the most recent update, because the published test version of my map worked before, but has the same problem now.

I tried putting a barrier and a floating platform under the ending zone to catch the player, to no avail. I can see when hitting End Game that it removes everything (buildings, props, devices, etc.), leaving only the player to fall to their doom.

Any one else seeing this problem, or more importantly, figured out a way to stop it?