Psyker Feat ‘Wrack and Ruin’ does not apply the stacks to all the targets within 3 meters
Steps to Repro:
Select the Psyker Operator
Make sure you have lvl 10
Select the Wrack and Ruin Feat
Find a group of targets with at least one special enemy
Target the Special with your Brain Burst
Observe that the stacks are not applying to all the enemy
Please see the video attached for more info
Feel free to reach out if you need more info.