Physics Invisible keeps being activated.

So I made an open world game, but I keep setting the objects to not “Invisible” in the physics panel but occasionally EVERY object gets set invisible and I have to go back and make them visible again. Maybe I’m hitting a hot key by accident but if someone could help it would really be appreciated! As it’s an open world game, I have to reset A LOT of objects.

its near ctrl f, I keep,forgetting what it is, but it is annoying

restric rendering or something of that nature.