As my rather verbose title says, if a part is in a collision group of which does not collide with Default, it can’t be selected with a click; however, it can still be selected using a selection box as shown:
Repro steps:
Have a collision group ‘X’ that doesn’t collide with Default ready.
Assign a part to collision group ‘X’. That should be it.
I feel like if they moved this functionality out of Default and into some special group this could be a really useful Studio feature for builders. But yes, can confirm this happens on my installation too.
Im surprised this post didn’t get any attention as this is annoying when you want to set collision groups in the studio before even running the game.
but if I may offer some advise, I got around this problem by scripting the collision groups instead:
in this article I found out how to do this only when the game runs. you will of course have to do a few things:
1: you will have to set the default group as well as any new groups.
2: loop through areas with parts you want changed and set their collision group.
3: you will have to use characteradded in order to make sure any new characters added in the game are set to the default group.