August 2019
after each game with my friends I can not apply the ready button and I have to leave and get back in and sometimes my friends enter games and I stay in the lobby this issue is on ps4
August 2020
Hi @iw04, I'm getting the issue in PS4 and have been for about a year. I've launched multiple bug reports starting in Feb and commenting on other peoples posts with similar issues. (https://answers.ea.com/t5/Bug-Reports/Not-joining-match-when-match-starts/m-p/9419734#M38644) and only ever got one response of 'check your internet connection'. My ping playing the game is only about 60-90 and get this same issue after every game.
https://answers.ea.com/t5/Bug-Reports/Game-breaking-matchmaking-error-Apex/m-p/9108647#M33172
https://answers.ea.com/t5/Technical-Issues/Squad-Matchmaking-Bug/m-p/9108703#M73682
Let me know if you have had any luck since.