When is sequence called ultimately?

[vvo]

I am using the sequence option as a function to save sequence to a database, but it seems to be called only at script start and that's it. Making my replication not resilient to failures. Am I doing something wrong? Should I save the seq myself too somehow?

[soldair]

I think you may be forgetting to call done. This is the most common reason for this bug report.
Else its new and im happy to take a look at your follower if you link a gist.