Yeah, me too. I added the name and system to that issue. It was a settlement with only a PWR, one HBR and one IND building.So far I've just seen the one variant that has no alarms panel and it's the tiny industrial one (there may be more, but my guess is it's always this type). I did go to check it before adding to the issue tracker and it definitely has no alarms panel so anyone trying the "but have you looked here..." line is a bit late to this party imo.
I was doing a covert mission there. I was able to get the sample. The alarm went off, but no mention of it in the objectives panel, while getting the sample was comlpeted.
Just to be sure I relogged and saw the mission was still completed. Not sure I was just lucky, or it always glitches like this.