Lord of Horrors Bugged When Allocated With the Megalomaniac Jewel

I'm playing the Abyssal Lich ascendancy,

With my current gear I can have 33 skeletal frost mages with Lord of Horrors allocated on the skill tree and 30 without. No change if I'm at full life or low life.
With Lord of Horrors allocated via instilling it on an amulet it works the same way.

However, allocating Lord of Horrors via the Megalomaniac jewel only works normally while I am above the low life threshold. If I forcefully set my life at below the low life threshold with the Mask of the Stitched Demon trick and change zones I can only have 31 frost mages. Only way to get more minions is to get above the low life threshold and then reduce the minion count a few times and then increase it again. That way I can get to 32 Frost Mages.
To get back the full amount of 33 Frost Mages I have to change zones while above the low life threshold.

I can confirm that bug exists, also on Abyssal Lich. I eventually got tired dialing the skeletal minions count back and forth and sold away my Lord of Horrors enabling Megalomaniac.