Poison Golems, Harvesters, and Bane Venom Q's.

[Uh-Nu-Buh]

It could be a bug, but consider:

1. I've only tried one poison golem.
2. I sent him into combat with an independant province.
3. He got 3 afflictions from that combat, and half his hits were gone.
4. I moved him to a lab province. He never healed.

Bug? Or because of his afflictions? Or should his afflictions have been healed in a lab since he is a magical construct? I dunno.... Expensive to experiment with it so I may never know.

[Vicious Love]

Was one of his afflictions disease, by any chance?

Creatures with both the "never heals" and "magical creature" flags only heal in labs. Creatures with only the former simply never heal (though lifedrain should work, as should regeneration, if they're not lifeless. Not sure about other healing spells).