Do I have to re-download all my files after separating from teams?

I unintentionally merged my account with a Teams acount after just trying to join a shared folder but now I'm separate again.  Now DB wants to re-download all of my files (2.5TB).  My files have not changed at all so ** is there anyway to avoid re-downloading all my files? **  My issue is that I don't have this much room on my hard drive to download files 2x and my internet provider is going to charge me for extra bandwidth AND I have to do this on 3 computers.

 

any help is greatly appreciated

 

*** UPDATE - luckily since 2 of my computers were not on during the merge / unmerge incident, I don't have to redownload on those.  They re-synced just fine.   But I'd still like help with my main computer if at all possible not to re-download everything.