It was near the end of my play session last night, so I didn't extensively keep testing. However, I figure maybe somebody who has time to play during the day today can look into this.
I have a non-seasonal Demon Hunter (always been non-seasonal, it's my first char). In my stash I had Hellcat Waistguard that I wanted to reforge in the cube. But every time I reforged, the resulting item had random stats instead of DH/Dex like it should've. I tried I think 6 or 7 times.
If nobody replies before later on tonight, I'll try it again and see if I can confirm it's bugged.
Maybe It will be some kind of long shot, but is it possible that you have this belt for very long time as well as you DH and belt itself is legacy item? That's the first thought that come to my mind after reading your post. It is possible that legacy items could reforge in different way.
I'll check it again when I get a chance to play again later tonight. Could've been a fluke. If it's still happening, I'll try to get another one from upgrading rares, and see if the same thing occurs on reforge. Might just be a problem with the specific one I had in my stash...I hope so.
Well, if it has got legendary power, so the item is definately new. I'll see If I have some in stash later and try to reforge some on my DH to cross check.
EDIT: just fast checked my season mail and some chars and I don't have this belt... I could have sworn that I got at least one. If I got some time tomorrow I'll maybe be lucky to upgrade one If I succedd I'll let you know.