Wanted to test Backblaze and worked from mainWP but clients (sites) back failed as the credentials for BackBlaze were not transmitted to the clients/sites (like it does do with S3, for example).
Using latest mainWP and all plugins are updated to latest versions.
When I change the back in Updraft and save, it indicates it pushed the new settinsg to the sites perfectly yet when I log in to the client/site the backblaze credentials are not there (therefore upload from planned backups goes wrong).
please advise.