Okay, I wasn’t able to record a proper video yet, I managed to get a way to actually get the bug more regular : it happens when there is an object in the scene with dynamic lighting (I mean when the lighting has not been built).
So if I built my lighting, no problem, once I move an object and it becomes dynamic (like a static mesh) and that I move quickly, I get the input freeze.
If it’s fixed in a next update then that’s great. I will still try to record the bug properly, in case of.