Stuck in midair?

I was trying to move over my transit tube by one tile and there shouldn't have been anything for them to stand on in the first place to get into that position, just plain transit tubes (not even the kind that act as floors). Though there were transit tubes directly below them (before first screenshot taken) after the trapped notification brought my attention over. I tried deconstructing them just in case but it didn't help. I don't think they could've been traveling in the tube because I'd already been dismantling it elsewhere in the network (maybe I'm wrong though who knows) (I was pretty sure there would be nowhere for them to land since I was deconstructing not too far above this location too, so I assume they wouldn't start traveling that way). I tried saving and reloading but they were still stuck. I tried purposefully entombing them in the hopes I could then unemtomb them, but once the tiles were built, they snapped out on their own (if it makes a difference, the bottom tile got built first, though they weren't free yet--took being "entombed" again by the upper tile). So obviously I don't need help here anymore--just wanted to pass it along!

I've included my manual save during the incident (as mentioned above) as well as an autosave that seems to be from around the beginning of the incident (not sure if it's before or during--I haven't loaded it to check since I didn't want to overwrite the log file).

Astrology Cycle 1094.sav Astrology.sav