Kenrith, the Returned King not counting Vanguard Supports [Fixed]

Kenrith, Returned King has abilities which automatically activate at the start of combat, based on the colors of "cards you control", however, having him in play and also having the Nicol Bolas Vanguard Support in play will not trigger Kenrith's black, red, or blue abilities, when it should trigger all three. Same situation with having the Tamiyo Vanguard Support in play - Kenrith's Blue and Green abilities do not trigger.

He does trigger correctly based on other non-Vanguard supports and creatures you control.

Tested in both A Timeless Voyage (top node) and Training Grounds, got the same results in both events.

This was a new bug from some patch since I first acquired the card - when I first got him, he was correctly being triggered by Vanguard supports.