Dakota with Infusion and Sustainment

Hello Guys

first post here, i want to report a bug:

i just tried on the target dummy, infusion does not work on the special effect shots (shock/fire) and neither does sustainment (with and without infusion, to be clear)

wanted to play around with a 3 elements dakota, using infusion and blight tiger, but i only get health back if it deals kinetic damage and if infusion is specced