With [b]voidwalker warlock[/b] bottom tree you are able to proc [b]devour[/b] with consuming a grenade. If you have the keybind on PC "[b]switch weapon[/b]" bound to any key & use It while you "[b]consume a grenade[/b]" on voidwalker to proc devour. You are able to cancel the devour action out with simply hitting the key you bound to "[b]switch weapon[/b]" In turn allowing you to keep your grenade. Now If you try the exact same action but If you have the "[b]Switch To Kinetic/Energy/Power Weapon[/b]" keybind bound due to preference you will not be able to do this action of canceling the devour grenade displayed above. I'm assuming this Is a [b]bug[/b] due to the keybinds action being the same as each other & It just being preference on how you wish to setup your keybinds.