Thanks man! I appreciate the feedback a lot.
There was indeed a bug with some props not being able to be selected. The prop selection goes off the objects collider, resulting in little objects being harder to select, if I had more time then I would of switched the system as it only gets one collider rather than every collider so this f**ked the system a bit, especially in smaller objects. I still haven't figured why some colliders wouldn't be selected, like the keyboard can't be selected even though it has the same scripts as other selectable object.
I really like the idea of a distance system, a system like that didn't even cross my mind while in development and I think that would help on speed running side as you would have to explore every room.
The red X pop-up was intended, I should of put that in the how to play to make it clearer. Additionally, you can turn it off in the settings. If I remember correctly, it was a toggle called Show Error Image. That enables or disables the red X.
Overall, thanks for the feedback. It was really helpful!