3 survivors lobby started loading
I've had this bug on PTB yesterday. I played as a killer and when I loaded into a lobby there were only 3 survivors there. The 4th one never showed up. However the lobby loaded as normal and the match started loading but didn't fully load and we were thrown to an endgame screen. i guess the latter happenned because of you system that prevent match loading with not enough survivors. I've got the error message like "Sorry, something happenned to you match". It's not the exact wording, as I didn't remember it.
The problem is that the lobby didn't stay and waited for the 4th survivors but tried loading into a match when there were not enough survivors.