Happens at caches, too. I have to switch to nade launcher, tap F and I'm good to go.
Edit: only happens for Light Carrier
Happens at caches, too. I have to switch to nade launcher, tap F and I'm good to go.
Edit: only happens for Light Carrier
That's because you only have room for 1 grenade with the light carrier. Switching to heavy carrier will allow you to carry more grenades.