Brave not syncing

hi, long time brave user here, this never happened to me, across 5+ devices being synced at once
i recently had my main laptop reset by a service technician against my wishes, so setting up my laptop to the normal, i download brave, and set up the sync code, and it doesnt sync, as in checked the new tab, my bookmarks or passwords dont show up. i think ok weird maybe if i restart brave theyll show up, they dont. i try rejoining the sync chain, it wont let me leave the sync chain. i uninstall, delete the program files from C, set up brave again, still wont sync.
and its not even i have many devices, i streamlined my devices, im just logged in my family pc (got the sync chain from there), my laptop, and my phone.

please help, brave version v1.87.188