Conflict with epic loot?

Skinning epic item (From imthenewguy's Epic Loot plugin) cause it to stack with a non-epic item, losing it's epic properties. I was unable to reproduce this, but a player of mine was able to. He provided a video but it's too big to attach to this support ticket so I'm providing a Dropbox link. I use Skinbox (https://chaoscode.io/resources/skinbox.17/) and Stack Modifier. No errors in the console. 

I contacted imthenewguy and he says it's either a conflict with Skinbox or Stack Modifier.

Video: https://www.dropbox.com/scl/fi/bvccr6ra6iahamc63bybt/253F1E7A00001.mp4?rlkey=jv2nlrs5ig9ywdlrl5pt6d20m&dl=0

Well imthenewguy harmony patches over all the default oxide stack hooks so it wouldn't be a stack issue with mine, at least I doubt it, either way there isn't a way for me to check or debug it.

Changed Status from Pending to Can't Reproduce