Fence hops not being blocked?

Daneryn

So I was playing a match on Haddonfield and there was a dirty loop with two fence hops side by side. I chased the survivor over the gap several times and the black entity animation came over it, yet the survivor was able to keep hopping over it regardless. I thought the entity animation means it has been used to many times and gets temporarily blocked? Or have I misunderstood something?

EDIT: I did some searching and it appears this is a recent bug that has been affecting other players also. Hopefully this gets patched soon.