Recently (last day or so as of posting) I was using strong fire lures while hunting for vulpix in giant spruce forest,
Lure seemed to be functioning as per normal (can't speak for spawn rates as i couldn't see those) but the lure durability was dropping as it usually would.
when it did expire however i was returned a silver lure casing in place of the gold one i had used to craft it - this has been repeated three of three times as of posting here.
am unsure if this is intentional or not but was asked to post this here from the nebula github.