Blend Multi into Layered Blend per Bone node causes crash

I’m not entirely sure if this is the place to post this but I have found a reliably repeatable bug in 4.20’s animation blueprint. It seems that whenever you plug an empty Blend Multi node into a Layered Blend per Bone node that is plugged into the Final Animation node, it causes the editor to crash.

The nodes are fresh, in that no settings are altered before compilation, and I have not tested any other nodes or settings as of yet since I discovered this at work and don’t have the time right now to do any in depth bug testing.