Engineers Torpedos special effect question or problem idk

[tursuluekmek]

i have 2 small torpedo on anaconda. so one torpedo has "reverberating cascade" and other has "penetrator payload". reverberating cascade torpedo on fire group 2 and penetrator on fire group 3. i tried with my friend for test this, when i hit a enemy when it has shield with reverberating cascade, its damage enemy's shield generator. its okey. when i hit penetrator payload when enemy has shield nothing happened so its normal to. but when the enem shields down and i launch torpedo from fire group 3(penetrator payload) nothing happened to and fire group 2 reerberating cascade hits multiple modules when shield down. i think my special effects combined on one torpedo. is this possible or penetrator payload upgrade have a problem ?