If morphing into a mob with less than 20 health which isn't hungerless, I'll constantly be drained of saturation and hunger.
My healthbar also appears to flash, as if regenerating, but not.

I suspect that because the health is less than 20, the game tries to regenerate your health to 20 in exchange for hunger, but since the health is locked to let's say 6 (bat), nothing happens.

Yeah, that might be a possibility. I'll look into that once I'll get back to development.

I suspect that because the health is less than 20, the game tries to regenerate your health to 20 in exchange for hunger, but since the health is locked to let's say 6 (bat), nothing happens.

Thanks for hinting it out!