Enraptured Beast not recognizing capture

Reference number is 630,799,870

I don't think an image is needed.

I'm at the broken ridge, I use a frost blades shadow, it's at level 56 at the moment of bug. I kill every monster in map, except the capturable ones. The thing is that i have tried capturing 4 enraptured beasts with reinforced iron nets. Einhar appears as he normally does, and the message of beast captured in chat also appears. But, the beast is not in the menagerie (I have enough space), nor it appears as being captured, it still says that i need to capture it. The nets are spent correctly.