Two Bone IK Crash

The Two Bone IK anim graph node is causing a crash.
I connected a vector to the revealed Effector Location pin of a Two Bone IK node, and now the project crashes upon compiling or opening. It didn’t crash when there was nothing connected or when the pin was not revealed.

The vector is the result of accessing two vector variables that live in the anim BP, via Property Access nodes. They’re only set in the Update Animation event. Any ideas? Or ways to fix without opening the project?