I have this happening on a v2016 Advanced system; has happened on previous versions too. They have multiple companies & 1 does this all the time; the other does not. The one that has the issue does a ton of auto-generating from SO. It just jumps sequence, like huge jumps. Then it will run that sequence for a while, then jump again. Sage told me to replace the PO Options with a fresh copy, but it didn't help. Did you ever get a resolution on this? Its still happening for us.