Client/server bug?

Hi,

so im having this exact same issue within our full game however to rule out everything i have replicated the exact same issue from a third person game, when clients join the server its as if it spawns 2 players and they seem to be dead as in non controlable and only exsisiting on some clients, im loosing my mind over this and hoping someone has seen this before and can point me in the right direction

here is a video of what is happening: https://streamable.com/z39ri

blueprints-: pretty straight forward default third person, one entry map, one main level, one transistion map, 3

entry map has code: event start-> open level(level name: 127.0.0.1,absolute true,options:listen?)
main level: there is no code here
transtition level: no code here

UMG: join button → open (ip:port)

engine version: 4.19.2