If you look closely, you’ll see there are two units that use to be in that stack that are now dead. My assumption is that one of those two units are capable of ranged attacks and were killed since the last ranged attack. Once the count down reaches zero, it will disappear.

Well, there was another glitch of planes going beyond range before. Funny one.

I was hit by that one. Had a bunch of planes on carriers. Tried ungrouping the carriers and the planes decided to fly around the world for six hours before I got them back. Good times.

i was once in a carrier air battle and half my interceptors decided to visit alaska

still won tho