Two Accounts Linked, Seperate Steams, Rockstars AND Fivem Accounts

My brother and I have different Steam accounts, Rockstar accounts, and seperate Fivem accounts. Yet when we hop onto the same servers, it shows that our accounts are linked. We’re trying to play together, but keep getting a License error. We dont live together, have seperate gta’s yet it still is linked

Did you guys at some point share an account?