Is Energy Shield leech bugged? Or am I missing something?

Lately I’ve been experimenting with a monk because I really wanted to use the Voltaxic Rift bow since I’m a big fan of chaos damage. I ended up creating an Acolyte of Chayula monk that uses Lightning Arrow, with all damage converted to chaos and scales through volatility.

Since I was already using the Acolyte to access the Into the Breach skill, I decided to take some ascendancy nodes that allow leech to recover based on chaos damage, making it easier to survive in higher-tier maps. In theory, this should synergize perfectly with Voltaxic Rift, since all my damage is chaos.

However, when I tried using Essentia Sanguis, which converts life leech into energy shield leech, it didn’t seem to work as I've expected. In the first image, without Essentia Sanguis equipped, I have 22.86% life leech (from both physical and chaos damage as you can see in the red circle). In the second image, with Essentia Sanguis equipped, the “life leech” is replaced by “energy shield leech” (as stated from the item, on the yellow circle) from physical and chaos damage (as the Acolyte of Chayula ascendancy node is supposed to), but the value drops to a flat 7.4%. Wasn't it supposed to just convert the 22.86% of life to energy shield? Besides that, no matter what I do, that seems to be the maximum value for energy shield leech.

In the last image, I equipped a different pair of gloves which have 7% life leech from physical damage, and the life leech increased from 22.86% to 44.61%, which makes the interaction even more confusing.

Here’s my PoE Ninja profile for reference:

https://poe.ninja/poe2/profile/sisifoemrespawn-1910/character/SunkHai

Does anyone have an idea of what might be causing this?