After the latest patch, I've run into an issue - bots sometimes become invisible to some players, and occasionally to everyone. Meanwhile, they keep acting in the world, including killing. There are no visual or sound effects at all - just silent death.
What I've noticed:
The bug doesn't show up for everyone at once - some players load bots normally and can see them, others can't (or sometimes nobody can). Even when viewing through the game master, such bots may not display a group icon, even though they're marked on the map.
Kills happen completely silently: no attack animation, no sound, no visible activity of any kind.
This isn't just happening to me - I've seen the same thing reported by other players and on other servers.
The bug reproduces even on purely vanilla units, without mods.
My guess is this is a replication issue - some clients (and sometimes all of them) simply aren't receiving bot data in time (or at all), which leaves the bot invisible, while the server-side logic (attacks and everything else) keeps working normally.
My netViewDistance on the server is set to 3000.