Critical: When "Join in Progress" is set to "Spawn next round" players still spawn before the next round when they join

Unfortunately this completely ruined our map, no workaround can be found for maps that have spawn pads in the arena.
“we tried to disable gameplay spawn pads few seconds after the game starts and enable new spawn pads that are inside of a damage volume… but the player still spawns in the disabled spawn pads… we also tried to do damaging event for joining player… and that also didn’t seem to work… making it impossible to fix, the join in progress option is fully broken… even if you put the option to spectate… the player will still spawn”