I've looked into the raws, and noticed that Psykers seem to have a third interaction, which is being able to spit warpfire. I have however, been unable to find the corresponding material for this attack. In addition, when testing in the object arena, I am unable to see, or use this interaction. I think that because the material in a way doesn't exist, the attack is unusable as well.
In addition to this minor issue with the Psyker's interactions, the Mentalists also have an interaction, which, while being shown in the list of abilities in object testing, is currently, unusable. It's the Bolster creature interaction. I'm getting the hint that this interaction was to be used on allies in addition to yourself right? Well... if so, then there appears to be a bit of an error in this.
You see, right now, (I believe that) the only reason it can't be used is, that the interaction is missing any tags that specify any targets and means of being used. It does not have an attack tag. (Though sadly, it wouldn't be too hard to guess what the outcome of changing this would be.) Now, if I added an attack tag to this interaction... then the creature would be using it's bolster attack on enemies, which is bad. Now, would adding a usage hint to clean friends somehow be the right thing to add, (in addition to adding a self-allowed target?) Or should the target be switched to self-only?