@Jimmie,

Found and fixed the issue...

In earlier versions of ZC, notifiers could only pass an array that could not be modified. Fortunately there was enough data otherwise
made available for the most part that a global variable could then also be used to pull/handle the necessary data.

Unfortunately at some point when the SBA simple select list was incorporated for use on pre ZC 1.5.3 versions, the incorrect global variable was used/entered (one that technically didn't exist). This caused the "empty" names to be present and the lack of stock to be considered as well as a number of other issues.

Anyways, this commit: https://github.com/mc12345678/Stock_...8764aa804cde20
fixes the issue for pre-ZC 1.5.3 users and has been incorporated into the master thread.

Thank you for reporting the issue, it was not easy to find someone that still had ZC 1.5.1 running to where the issue could be troubleshot, but I was able to do so.