Everyone got kicked for data mismatch when started murex event mission

[HunterDigi]

So in scarlet spear I was hosting a squad of a friend and 2 people from recruiting, we played 2x5 murex so far and were going to play a 3rd, but the game decided nope.

As soon as I started, everyone in the squad left and my friend screenshotted this:

 

I tried inviting them again but all of them failed to join (at least that's what it said in my chat).

Meanwhile another player joined through matchmaking as the session was public.

[ScottDaniels]

I've been getting this when I join railjack missions, and it sends me to a new instance so I cant work on ranking up within 1 instance, very annoying.