It seems that when you spawn a camera either from a saved world or from the menu, the camera bind doesn't seem to ever work. I played with the menus for a second to find a fix for it.

Step 1: Spawn all other entities with the spawn button under the load menu.

Step 2: Spawn a camera that you need with a toolgun. Location doesn't matter

Step 3: Right click the camera within the SMH menu to highlight it green

Step 4: Open the Load menu and load the camera.mdl

Step 5: Camera work baby. The camera will keep the location you spawned it till you move to a new Frame

Note: This may work with other Garry's Mod tools that need binds; Thrusters, wheels, etc. but I haven't tested it

My guess for this issue is because the "World" spawns in the entity so it isn't actually yours but I don't have any evidence for it.

Hope this helps anyone else