Ok, it works in v3.01.769 using flat file method.
So it appears that the issue is something with using SQL...
Ok- now that's something.
Here's the problem... there is nothing in my code unique to either type. Similar to my Ticket Merge Mod, people have reported success using these mods with SQL.
I am using the same routines as TTX to read/write to the DB. TTX then handles the ugly details regarding which type of database is being used.
Weird, but at least now there is something specific to look at.

(I'm wondering if the 2.24 version using SQL will work as this version is closer to the time I rolled this out)
Thank-you, other people reading this thread will appreciate your efforts.