Tank loader perks not working on this squad?

This tank has a crew of 5 with a loader.
My loader has both loader perks.
But when changing the ammo type after a shot, the reload time will start all over again.
This I can only fix by giving the commander loader perks (just like when there is no loader).
But that should not be necessary with a seperate loader present?

When I do the same with this tank, which also has 5 crew with a loader, all perks work fine.
My loader has loader perks and the reload time correctly does not start over again after a shot.
The commander has no loader perks.
So this tank works fine.

So what is the situation with the Sherman II loader/commander perks?

Is your crew in the right spot.

Mine works just fine, no perk for commander