Posted an AnswerHub about , but it seems as though the new BP cyclic dependency checks in 4.5 cause problems with interface BPs…? If I open my 4.4.3 project in 4.5 I get PIE “infinite loop detected” crashes on BPs which communicate back and forth via the same interface (i.e. the interface is used for bidirectional event/function communication between them) while all other BPs work fine…?