“Waiting for Players” in Solo?

Soo I randomly came across ANOTHER problem while playing…pls tell me why I am having to wait for players in SOLO??? Its almost every challenge I do for some reason, but it wasnt like this before the whole time I played, only within the last few days. I enjoy this game a lot but its hard to keep playing it with all these issues..Dont know how these new problems even keep coming lol..