Bug encountered since the release of the 23/01/20 patch:
Bug: Slotted Knockdown Proc (Superior Avalanche) in Brute Shield Charge activates 100% of the time on all targets. The resulting combined knockdown becomes knockback (as expected). After removal of the proc, Shield Charge works as expected (80% chance of Knockdown). Once the proc is re-slotted, the bug is still present.