crossbow skills cannot use "always attack without moving"

crossbow skills cannot use "always attack without moving", as the "fire crossbow" does not appear in the skill gem menu.

ticking the box with the relevant ammo type does not work
ticking the box with the basic "crossbow shot" skill does not work



edit: this only does not work for left click use of fire crossbow
it works properly when assigning this to another key

Having the same issue.

Permafrost Bolts and Fragmentation Rounds lets you tick the Always Attack Without Moving bx, but it doesn't save. As soon as you exit the skills tab the box unticks and you move on attack