20 minute priority queue bug

so i download the new league client because ayy I'd assume it would've fixed all its bugs by now.

got low priority, do 20 minute queues. finish 2-3 games

bout to do my game as its starting, then i see this. 'I left the queue'

except i didn't.

and now i have to do the queue again.

downgrade back to legacy i guess? never did this for me in the legacy client

(i get low priority often for leaving games, majority due to having high ping or frustration from being flamed/salty team)