I just had some glitch when trying to mutate this larva:
http://beastkeeper.com/pet/149297

First mutagen use loaded a blank page (the top bar was visible, but no text on the page itself). I backspaced and tried reloading, noted that I still had the same amount of mutagen left. So I re-selected the larva and tried again a few more times, but couldn't get it to work.

Then I checked the larva again, and I noticed that her genes had been completely messed up. Even though none of my mutagen had been used up. So I seem to have got free mutagen uses from that glitch, though those ruined her genes.

(After that, I attempted to mutate her again. This time it worked. But I couldn't fix her genes, only ended up wasting my whole stack. :/ )

Dunno how that happened. I've mutated several other pets recently, and had no problems with them. Something to do with Throdama not having bone genes, maybe?

EDIT: vv  Everything seems A-OK now. Thanks!

Thank you for reporting.

One of the colors was missing in the database and you got it through mutation. It's fixed now.

We restored your Throdama to the initial state and refunded gold coins spent for mutagens. Please say if something is missing.

Sorry for the inconvenience.