Game crashes when opening custom skin packs after opening Character Creator, Emotes, or Capes tab

Steps to Reproduce:

1. Download and import the attached skin pack

2. Create a classic skin

3. Go to the Character Creator, Emotes, or Capes tab

4. Go back to the Classic Skins tab

5. Open the custom skin pack by clicking on the + button

Observed Results:
The game crashes.

Expected Results:
The skin pack opens.

Video: