Changing S1000D Schema

[TeknekulWrytur]

While trying to open some older data modules, I selected S1000D_2-2 rather than S1000D_2-2-1. Now, each time I open the data module it validates to the 2-2 issue. I've searched help, online resources, and this discussion area. I haven't been able to find a way to change the schema being used when I open the data module.

Can someone explain in simple terms how the schema association changed? Also, is there a command that would allow me to simply change schema to the correct issue?

Thanks for your help.

[TeknekulWrytur]

Found the answer.

In C:\Users\username\AppData\Local\PTC\Arbortext\Editor\.aptcache\doctypes\catalog

an entry was added to top of catalog file:

URI http://www.s1000d.org/S1000D_2-2-1/xml_schema/dm/crewSchema.xsd "C:\PTC\Arbortext\Editor\custom\doctypes\S1000D\AECMA2-2-LESS\crewScema.xsd"