Indicating state of clustering

Yes, that is how SQLTags works - tags only get updated on change. You’re going to have to implement some sort of workaround for your quasi-clustered database. As part of your procedure for bringing up the master database, you can artificially cause the tags to think they’ve been changed by running a query like:

UPDATE sqlt_core SET valuechange = CURRENT_TIMESTAMP

You can also try using two-way replication for MySQL.