I'm not that guy, but have had it happen to me infrequently. Or something similar.
Platform: PC, windows 11
Gamemode: Conquest, Arena
Internet:GCI, Anchorage, 1.7gb hardline with unlimited data.
Session info: computer left on for hours, not usually fresh log in of game. Often when I utilize the play again button off the previous games scorecard. I more typically just get the 0:00 for all queues and have to close game and relog(some of which time it tells me I'm a deserter, and gives me deserter status upon relogging), but occasionally(1 or 2 games a week) it will take me to champ select after queue and all god portraits are black and I can't click them, so I get stuck with deserter again. Really fun, when I am also in charge of choosing bans.. so then I choose no bans, and desert, wasting so much of mine and 9 others time.
Video: I can try and get this, but I am not a streamer/recorder. So will be quite inconvenient to set up. Would account it happens on, time/date stamp do anything to assist? Thats much easier to keep track of. Then record for week straight hoping I get an error I often try to avoid(exit out to main lobby, and then requeue from there).