Invisible fire?

Lately I’ve been blowing up barrels and using molotovs and the explosion effect is intact, except, when fire is supposed to be on a prop, it’s invisible. I can get damaged by the “invisible fire” but for some reason, it doesn’t appear. No bad lua code appears either. If someone knows what can fix it, or has a possible fix, post it on here.

Same problem as you here, no solution for me yet though sorry.

Do you download a lot of stuff from garrysmod.org?

Not too much, I’ve got the essentials; and a few other things like SBEP, GBombs and other stuff.