OK, found a new bug this weekend. Persistent, not difficult to "fix" during play but since it keeps occurring, very annoying!
Situation: a squad declares double-time so it is marked with a CX counter. Move the stack to a new hex, and about 50% of the time, the following occurs: the CX counter repositions itself under the MMC. Even better (and weirder): the opponent immediately loses visibility of the stack (as if it's HIP). The owner of the stack can still see it correctly and can confirm that the stack is not HIP, but opponent still can't see it. To resolve, put the CX counter back on top, move the stack somewhere else and then return it to the original location, where the opponent can now see it.
To put it mildly, this bug combined with the previously-reported stack-flattening bug is making playing the game a trifle wearing. Do we have any idea as to what might be going on here (and hence, an imminent fix)?