This bug happens to me sometimes, but not odten. Select a part in the explorer tab, press F to go to it, and then you should have the ability to rotate your camera, select parts, if not then you have a unique problem.
It is something to do with collision groups. For me it was that default was set to not collide with itself that broke it.
1 Like
I found a better solution you just have to find that invisible frame (for me it was a invisible frame) and then just toggle the “Interactable” property.
It will tell studio that you’re not interacting with the invisible frame but with the game itself.
Edit: Apparently it disables everything inside of it too… Maybe it wasn’t a better solution. 
yea, ever since roblox created that property, UIs have been 10x more annoying to manage.
1 Like
I highly agree with you, House_Owner. 
1 Like
I found a ACTUAL fix and it is to just toggle the “Active” property on the element that is blocking your mouse.
This HAS to work.
1 Like
I had this situation happen to me when I made my Viewmodel into a WorldModel, instead of just a Model. I don’t know if it is related exactly, but I couldn’t select it without dragging or explorer, and it refused to be moved while in studio.
1 Like
Im having the same issue and it’s affecting both in studio were i cant drag parts or click em’ but mine doesn’t even work in game like ClickDetec or anything related to clicking is just simply not working…
restarted Pc, Updated studio, nothing works.
2 Likes
Something that worked for me is this:
In the collision groups editor, there is studioselectable. If default cannot is not checked as can collide with this, it cant select items
3 Likes
So yeah, Apparently this is the correct solution to this problem. Apparently most of us forget how to even use Colision groups, I had to look trough roblox documentation because roblox update colision groups aswell.
I can’t remember last time when was colision group inside properties tab even a thing.
2 Likes
Perfect! I had this problem but this fixed it, Thanks!
Sorry to respond to an old thread but I feel this issue might be important to a lot of people.
I think that you could just toggle UI Visibility to off, so that you don’t see any of the UI. It might get a bit annoying to turn it off every time you open the game though.
In my case it was not a UI issue so no it’s not all about that
Yeah, it can be multiple but I just did it in case someone still looks here and made a change to their UI.