cCant login to my alt account for some reason

also another thing it lets me login to my alt accounts but not my main account so now im just confused

ok so that day i unlinked my account because i was trying to log in an alt account but i couldnt for some reason , then i created another psn account for my other account and logged in whilst my main account was unlinked . I left home with my alt logged on and my main unlinked . Then i came back home and i couldnt log in my main . 1 week ago i unlinked my alt from my alt psn account trying to log in my main psn account with my alt . But in a matter of seconds of unlinking my account and switching psn , it said it was allready connected even that i unlinked . I can still log on xbox app and minecraft on my phone

Hey for some reason I wasen't able to reply so this is my alt account. So I was trying to say how do I find out which account is being backed up by my main account

My brother selected a custom profile picture yesterday and it uploaded and worked immediately. I put custom profile pictures on my alt accounts yesterday and they uploaded immediately. For some reason my main account will not add the profile picture even when it says it’s pending. It’s not affecting everyone’s.

Ok. So I fixed it by signing into a different account. For whatever reason they were under my alt account. Which I never use. Strange, but I guess it works. Thanks