It has been brought into my attention that v0.06 of Twin Maniax! might have some issues regarding the display of photos in the phone menu during text messages. And that is indeed the case, silly me! I have produced a quick fix for that problem that you can download right here:

https://www.mediafire.com/file/50xi4yzas31nrm8/v006fix.rpa/file

For it to work you should place v006fix.rpa inside the "game" subfolder of your Twin Maniax! folder, right alongside archive.rpa. Hope that fixes the issue for you!