You added a table, or changed relationships. Only thing now is to repopulate
the replicas, ie, create new ones. I just had to do the same for 50 partial
reps.

When you need to make table changes, do a test first. Back up the master and
a partial rep, then make your changes and merge the partial rep. Merge twice
to be safe. If failed due to filters, restore your backups and overwrite the
changed databases. If it worked, then you're ok. Make any necessary changes
at the same time to avoid constant repopulating.

any one know what causes this and how to avoid it?