August
Similar problems have occurred twice in the past.
It has always happened when I am playing an Apex ranked match on PlayStation5 with a PC friend and a duo, and in both cases, non-CS players are excluded from the match and the troop count is reduced to about 6.
Also, both times it has happened, the problem has occurred on Broken Moon.
The first time, right after landing from a dropship, the game became unusually slow and all PC players were eliminated from the match and the number of CS players was reduced to about 8.
My friend, who was the excluded player, was excluded from the match at that time but did not receive any penalty.
The second time it didn't affect the operation itself, but non CS players were excluded from the match at the legend selection screen and my friend was penalized.
Both times the PC player got an error message saying "Client is not running the anti-cheat function or anti-cheat authentication has failed".
I have not been able to find out if this is caused by a bug, a glitch, or a cheat, but at least I have not seen anyone else on social networking sites complaining of similar symptoms, so I am asking the question here.