UI action automatically reinitialize the viewport

Very annoying behavior here and can’t find the way to avoid it.
I loaded a 2.79 scene into 2.82a.
I’m using the rendered viewport using cycles, as soon as I do any action in the UI (select an object, select an option or a menu item) the scene is initializing and the render restarts.
I tried to start with a clean scene and then append my 2.79 scene and got the same issue. I individualized some objects that generate this problem. If I append only one of them in a clean scene, I meet the problem even after deleting that object.
This is very very annoying, it’s quite impossible to work efficiently with such a behavior.
Is there a way to avoid that ?

Ok I found the problem, it has to do with one of the addons.