Behavior Tree Agent Error

I seem to be getting this error on version 2.1 when an NPC dies and if they are carrying both the Behavior Tree Agent and Behavior Tree Lua Bridge scripts (from DSU) at the same time, and when the NPC has zero health left. Instead of playing the death animation the character will start moving in a direction. Any ideas on what I should change? Is there need for a DSU update for this?
 
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