Stock by Attribute v4.0 addon for v1.3.5-1.3.9

[mc12345678]

I also find that if the dropdown set is on 1 or 3 I get an error

Not too much of a surprise on the 1/3 setting. Options are provided for those that personally require or have some other need to basically use dynamic dropdowns to handle single attribute product instead of the alternate method that was developed by potteryhouse. Nice to know, but at the moment is not a show stopper. There are even other dropdown type selections possible that may not work with such a strict database, potentially strict php setting...

As to the issues seen on the admin side of additional "blank" fields, I'm still looking into what is/did cause that. Seems unusual indeed. There is something going on that seems to be allowing earlier records to be visible with this new "product" even though there seems to be no reason for that earlier record to be shown with this new one... Further because those records that are blank have a lower record ID I suspect that they were created earlier and then just now associated with a new record otherwise there is something that is modifying existing records and providing the unusual results.

What I might suggest doing is to export the PWAS table (recommend using phpmyadmin or something similar to ensure retrieval of the full table), then performing one of those operations that have caused what is seen. Export the table again and compare to see if/what changed in the exisitn records...