Mana per Enemy Killed not working in 0.1.1

Just after the patch hit, I entered the game to see all the nice changes in the world map. After entering the citadel I immediately noticed that Mana per Enemy Killed is not working. I am running a Gas Arrow / Decompose build. Maybe it's just enemies that died from the Decompose, but that was working previously. It was actually essential. Is this intended (no mana back from decomposed enemies) or is this an actual bug?

Edit: Sadly this is game breaking for me. Will wait until it gets fixed somehow.

I was just able to login for the first time after the patch - running a pretty vanilla gas arrow pathfinder, and mana on kill is also not working for me. When I kill enemies with plague bearer, it works - but NOT with my gas arrow clouds.

UPDATE - Did another map and it started working again, so I am not sure what caused it, bit it most definitely was not working.

The problem re-appeared on the Mesa map.

Edit: On the next map - no problem. I checked the affixes. This should not happen. Tried login/logout on THAT map, didn't help. Then suddenly on the next map it's working properly.

Again happened on Blooming Field. This time it's coupled with another bug - when clicking on the checkpoint near the boss to teleport to the entrance checkpoint (after killing the boss), the teleport seems to "happen", but without actually teleporting, so I'm displaced 2 steps from the place I'm currently at.

I also have this bug getting almost no mana on kill on some map and not others.

I think (but it's a wild guess) that it could come from "Monsters gain 25% of maximum life as extra maximum Energy shield" sufffix on map as I seem to have it only on thoose maps.
Maybe since there is no direct hit on most of the ennemies and they still have energy shield at the moment of death it doesn't count as a kill I made and so no mana reward.

As I said it's a long shot but if anyone has this bug on energy shield maps add your testimony.

PS: I just found this thread with the same explaination : https://www.pathofexile.com/forum/view-thread/3663278

Same problem. I'm having a terrible time sustaining mana with 4% mana back on my main weapon, plus 4% mana on kill from jewels.