I've been having this issue in Train Sim World 5, and when carrying over to Train Sim World 6 the issue still persists. I enjoy taking photos in the photo mode in this game (I play on Steam by the way) and sometimes I like to go in and delete some of the unnecessary ones. However, in TSW5 I was having the issue where I would select a photo, select the delete option, and then it just wouldn't delete. And I ended up having a massive gallery of photos that had so many pages because I wasn't able to clear it out. The same is happening on TSW6, where there is no way of deleting the photos I don't want. This is very annoying and I hope you fix this issue soon!