I don’t get it

Hello,

Here is my billards project WIP :
https://cdn.soft8soft.com/AROAJSY2GOEHMOFUVPIOE:4f921f28ff/applications/toulet_whitelight/test-whitelight-responsive.html

Changing colors is ok.

But i don’t understand a behaviour when it is about changing ambiance :
when i click on the html button, i hide all background planes, i set the right camera, i show the righ background plane, then i change the HDRi environment texture.

For now i let down the disable render with AA to test.

As you can see, even if only the “Studio” camera (full whit envir) should be free to move, all others are set “allow panning unchecked in 3dsmax params, and some of them are still moving.
And also, sometimes the camera is switched, then switched back to another one…

I don’t get it. Any help would be nice.

Here is the puzzle code :