Zealot grenades dont affect bulwarks, EXCEPT if the zealot is physically behind one

Warhammer 40,000: Darktide Bugs
1

https://www.reddit.com/r/DarkTide/comments/zk7a7u/zealot_grenades_dont_work_on_bulwarks_unless_the/ here is a reddit thread of video evidence. this issue is particularly annoying cause zealots have very limited ways to deal with a bulwark.