Hello there[url=https://tenor.com/bwEBR.gif],[/url]
If you disable cross save, for any reason, there is a mandatory 90 day (roughly 3 months) cooldown before you can reactivate cross save. During this time your active save characters will only be playable on their original platform, in your case Steam.
Thanks, Tuxy. It kinda sucks, but I guess there's just some limitation there for whatever reason. I'll have to just switch over to my old PS account whenever I want to play lol