Sometimes your enemy tagging feature just stops working at random. I failed to establish a pattern, except from - I think - it usually happens when you load into some new environment. It can be at the start of a mission, or when you’ve reconnected to ongoing mission after DC - or even when you’ve loaded into Mourningstar hub, just there it’s emote wheel that stops working instead (I have both tagging and emotes bound to the same key - Tab; a press will tag enemy, a hold will summon the wheel with canned phrases or emotes).
When it happens, sometimes it will go away if you leave the mission and reconnect, but in some cases only if you restart the game. I can’t remember if there were cases when it just got fixed on itself, at least they were rare then. I also heard other players mentioning this happening to them, occasionally.
It’s been happening for some time already, I think for a couple months at least. I also don’t think I encountered it before that period, so may be it’s something that came with one of the recent updates?
No, it isn’t. Keybindings are not an issue, EVERYTHING else works at the same moment, and I never saw any other keybindings stopping working like that. And neither it’s “game input being eaten” - in this case it will be just certain presses which are ignored. When this issue happens, ALL presses of tag button are ignored, it just doesn’t work, usually until you restart the client or may be re-connect to the game.
At least the first link explicitly mentions the tag button along with the overlay (tab by default).
That said and to collect details and/or similarities, how’s your overlay button when the effect occurs? And is the social wheel working in-mission? It’s always (and only, AFAIR) tag, wheel and overlay altogether for me.
It also happens to me randomly during a mission, not only at its start, when reconnecting or changing the environment. And it often goes away after a time, I think I noticed that picking up anything like ammo, stims etc. may fix it for a time.
I also think it started for me and others with the Stolen Rations event, though it may’ve only become more apparent because of the many ration pickups during it.