Thanks for the report. It doesn't function in female form, but the item screen display seems unchanged. I plan to release the next update in early December, and I'll fix it then. The next update will be a major one.
I just remembered, this is not a bug I think but in the female form you can still buy the rod enhancement potions
Oh, that's another important point. Thank you. I'll fix that in the next update too. If you'd like, please read the next article as well.
https://www.patreon.com/posts/141690768
