DuckShovel

I'm playing a crossplay save that I started on my pc, and I play with my brother and two cousins. The three of us playing on steam can hop on the shared save whenever we want. But the person on the ps5 does not see that shared world in their saves and every time we all play i have to invite him into the game. He can't see us playing and join. The world is shared with him and he has crossplay enabled. Is this fixable or are ps5 users not able to freely use pc made crossplay saves?