From: Midwest USA
Posting this here as I'm not ready to post a save to tech support (michaelm pointed out on my last bug that we're not quite at the latest patch, I must have loaded a public beta and never got around to the final patch. And since there's one of him and a gob-load of us, I figure I better make sure this is replicable on a real patch before taking his time). However, it might be someone has seen this before and has useful insight.
After the turn execution, Singapore is somehow messed up (possibly others, but that one for sure). Below is the mouseover, note that there is some unit fragment at the top instead of Singers, even though singers shows up below that as a base. And to add further excitement, that fragment is not only not in that hex, it doesn't exist according to the ground unit display. I/124th<blah blah> is intact.
I can transfer air units to singapore by selecting from the base list, but not by clicking; and I can't click into the base although I can get into it from the base screen. So, Singapore looks to be intact as a base but there's something "in front of it" from the map's point of view. It might work... but this sort of corruption seems worrisome.