Peculiar issue with SupportedUnitModelType

Mod for reference: https://forums.elementalgame.com/394141

The issue I've run in to, is as following:

I start up Elemental, and go to "New Game", click "Next", then "Create Sovereign".

Then I click on the "Appearance" tab, now the issue is that the clothing items available in the "Clothes" tab, seems to have ignored the SupportedUnitModelType tags set in the modded files.

BUT

If I click on the "Body" tab, and then on the "Clothes" tab, the items available are displayed correctly. It is as if the SupportedUnitModelType is not checked at first load, or is refreshed when clicking away and back to the "Clothes" tab.