HP Regen Bug w/ Reap Mines? Maybe?

I've been working on a Reap Miner build in 3.26 and noticing something odd that happens far too often. I currently have ~700 HP Regen per second coupled w/ 3.2k life. When throwing out Reap Mines via Minefield, I can clearly see my life being reserved along w/ the numerical amount however, once the mines detonate and I clearly see all the reservation information and icons disappear, my HP doesn't regen. In fact, it'll often sit there for a full 4 seconds before it seems to remember I'm supposed to be regenerating ~700 HP per second.

I've looked up other builds and noticed most have half the amount of regen I currently do and when watching their builds, they don't appear to have this issue. I've tried adding detonation speed, and taken the full Mine wheel thinking this might be the issue, but it's still happening. Anyone ever encounter this issue? Am I missing something?