It worked for a while after last BAS update, i logged in, but today reddit logged me out and i can't login again. It gives an error and after second try it blocks me. I tried to apply fingerprint, but nothing works. I was automating reddit with BAS for years but now it seems impossible.
Export your spreadsheet as csv file, than import it to BAS as a resource and set it to use each line 1 time (it is default setting I think). That way each thread would take new line from your csv file in run mode or as compiled bot.