Off Hand Shield build Bugs

hi.
i play as a offhand shield build for fun!

i have noticed a few gems that say they are compatible with shield skills have 0 effect or seemingly unintended interactions.

i will try to add them all here and go into detail on each issue but some where found early in my playthrough and i cant remember them all.

quick info about my build incase it matters.

i use
"resonating shield"
"magma barrier"
"shield charge"
"infernal cry"
"shield wall" to protect/cover friends for revive


---ill go over a strange interaction first---

1) "stomping ground" support gem on "shield charge" if you swap out your melee weapon for something like a scepter you lose the aftershocks on step (it still shows inside the skill info tab that its there they just don't trigger) which is odd since the support gems 'Shockwave' damage is based off your strength stat and it specifies no reliance on a melee or any other type of weapon as it 'triggers when you take a step while using supported skills' limiting aura support options


----support skills that simply have no effect on skills even though they say they are compatible----

1) i don't know if this one is intentional but
"persistence" on the skill "Magma Barrier" before the shield rework in the previous update it brought the 'magma infusion window' from 0.5s to 0.75s now it has no effect this also applies to skill effect duration gained through other means like the passive tree

2) Support gem "heft" which increases maximum physical damage says its compatible with "infernal cry" "Magma Spray" "Resonating Shield" "Shield Charge" "Shield wall" but has 0 visible effect when equipped to each of them

there where definitely more that didn't work and if i find them again ill update this thread

+1 same issues on my character.