We are not using Flex with Paratext.
In the Project Properties, no associated project is selected.
In the Project Properties, the language is listed as Kupsabiny (kpz-Latn).
In the registry, the language is listed as Kupsapiiny with identifier kpz-Latn.
So the names are different but the abbreviation seems to be the same. I do not know why the name in the registry is different from the name in Paratext.
Iver+Larsen