Came here to say the same thing about the EVA refuel issue with KIS' EVA-11 Fuel Canister. The tanks are full but the "Refuel" action does nothing when clicking on it. Tried dropping it on the ground, picking it up again, exchanging them with other Kerbals etc. nothing worked. By the way in the mod settings page you wrote "EVA Propellent Type: MonoPropellant" but I doubt that's more than a simple text typo than the cause for this issue right?