Bug/Issue Capturing problem

I know it's from my mods, the capture pod doesn't seem to be doing its job properly, I tried spawning a monster (for testing purposes) and tried to reach the lowest health possible for capturing, but... well the dude just "poof" disappeared into thin air, without going into my pod.

I got the log too, please do tell me the problem.

 

Appears I have this issue too- and I have no mods that directly interfere with any of the creatures or the pods. Judging by both of our .Logs, I've found this:

EDIT: Unstable doesn't seem to be affected at all- capture pods work as intended.

 

>.> I found how to repair it, and it works now... although I also forgot what I did, I also noticed there's an update on useful pets so I'll try that out cuz mine is old.