Whenever i place props in hammer There's an 80% chance they WON'T show up In game.

I still haven't been able to solve this problem, so I just want to set all settings to the default settings to fix any pointless problems. As usual I'm unable to, nor find a button anywhere so I am asking here for help.

Should I just reinstall the SDK or what?

Make sure you're using the right type of entity for the prop or vice versa. There are just many models which can't be used for anything else but their original entity. The compile log should tell you whenever you encounter those.

Yeah yeah I've experimented with them before, also changing fade distances for the models too (which people on forums told me to do to try n fix it). Like once I created lots of spot lights, some showed up and some didn't. It's totally random, and goddamn annoying!

So I might aswell reset hammer