Can't enter Armatus (Disruption) SP from Sanctum Anatomica as a client

[Tesla_Reloaded]

When I attempt to enter Armatus (the new Disruption mission) directly from Sanctum Anatomica the loading starts as usual - I connect to a host and things seemingly go normal, but then, right after loading, everything disappears (everything except for UI turns black, as if all level geometry goes away and I fall through the level) and then an error pops up, saying my game data isn't matching the other players' game data and I need to verify the game cache. I do that (verify game files via the launcher), but nothing changes - the problem remains.

Joining the mission from the orbiter works fine.