The only element of cross-play between the consoles and the PC is the universe state. This is maybe what is causing some confusion.
The 3 different platforms - PC, XB1, PS4 - have separate instance management and always have.
Across the board there are essentially a total of 7 instancing situations:-
- Solo - same for PC, XB1, and PS4 (only the universe state is communicated)
- PC Group - no XB1 or PS4 players can join
- XB1 Group - no PC or PS4 players can join
- PS4 Group - no PC or XB1 players can join
- PC Open - platform segregation as per PC Group
- XB1 Open - platform segregation as per XB1 Group
- PS4 Open - platform segregation as per PS4 Group
You can probably also add Shadow Ban to the mix which allows affected individuals (
who have falled foul of the in-game code of conduct) to play but can not affect the universe state and probably only spawn with other shadow banned players of the same platform (
shadow banning may only apply for the PC platform - not sure on that one).
Player accounts are even tied to the platform they were created on, as are any associated Squadrons.
Also there is the point that each instance (of 2-7) is restricted in how many players are present (
maximum of 64 IIRC) so even with Open there are bound to be same-platform Open players that you can not see nor do anything about.
The long and the short of it is that regardless of Open/PG/Solo mode and PC/XB1/PC platform segregation, there is no guarantee of spawning with any given player who may be operating counter to your own interests.