Einhar Failed to capture Red Beast

The following was going on in the image below:
1. This was in Act 2, in the area just before climbing the Vaal pyramid.
2. This was the last thing left to capture in the area.
3. The beast likely finished burrowing soon, if not instantly after Einhar threw his trap (wasn't paying attention to Einhar when I was killing the beast, so not quire sure of the specifics).

Possible fix: have Einhar keep throwing nets every X amount of seconds if a near dead capture target is near the player character/on-screen.