So what was the "training size bonus" (3064) when you didn't feed the Bear? If it was 3064 then all is well and you know that the 3064 is coming from some combination of AW's etc. To test this just feed the Brown Bear and see if it changes to something larger. I hope for something like, 1,000,204,333, but it's probably going to be a bits smaller than that. If the 3064 doesn't change then it's probably a glitch OR, my assumption that the bonus you get from feeding the Brown Bear is shown in the "training size bonus" is wrong, in which case the screen shot showing the break down would be totally useless in determining if your Brown Bear is healthy or not.
On a side note, if what you describe is actually happening, and it happened to me, I think I'd keep the whole thing under my hat and let the glitch go on! But that's just me.
AJ