I seem to have encountered the same issue. Tried to install again tonight (had it previously, worked fine) and many parts and customization elements seem to not display (placeholders are completely blank).
Can't add in characters, can't see the components of mods in order to modify, on options/audio page can't see the right side (the customization part for voice packs and so on), only the left side is visible. Display settings only show upper part (In Game Overlay), the lower part (Display Settings) is completely blank.

The overlay does not show in game. Tried running as admin as well, installation done the same way i always did before.

Any ideas?