Hi nine2,
with this issue, I run into it every game multiple times. But I use patrol a lot over attack move.
Reproduced it now with just a commander and a game with only common mod tools + ui party. In ui party the mod is enabled, watch units was on and start units in ground fire mode as well.
The 7th queued patrol I made reproduced it. See between 00:23 seconds and 00:25 seconds. Game id #19097091.
PS: It reproduces as well with only common mod tools + notifications 5.2 on under the same conditions.