Evasion Body Armour not adding ES at start of each area

Hello.
I have been noticing that when I enter an area (my hideout, waystone, town, any area) that I start with 2000 energy shield instead of the max 2441.
This happens every time I enter an area.
The issue started recently this week.
I am pretty sure it has to do with the body armour as when I take it off I am at the flat 2000 ES.
I have a Deadeye build so using things like spectral ward.
I recently tried on a Queen of the Forest but reverted back to a Eva base rare with spirit.
After switching back is when I noticed the inconsistancy.
Please let me know if you have any questions or anything I can do to help explain/show the issue.
Thank you

Edit for more detail
I noticed that if I enter an area while already at 2000 es, that upon starting the next area I am still at 2000 ES and it does not reduce further

I changed out some items for bossing and the issues resolved
I then returned a few items to see the issue happen again.
I have isolated the issue to my Megalomanic with Doomsayer and Battle-Hardened.
I switched it with a Prism of Belief +3 Lightning Rod and the issue isnt there.
I switched back and forth a few times and after a couple portals the issue no longer happens.
I will update again if it happens and if i have more info

The bug has returned.
I was sitting at 2441 ES. I changed Megalomaniac jewels with different mods.
The new one has Mindful Awareness which raised my ES to 2637. When I change area's, my ES drops to 2441/2637.
The only change is the megalomaniac jewel