[Dragokas]

Thanks, confirmed.
m_iHealth wasn't enough, will have to set max health as well to reproduce.
Experiment said it's engine's bug happening at very specific circumstances: when player hanging legde + having too high value of health & maxhealth; the call to "give health" cmd lead to damaging player internal struct. Any next call to temp. health prop offset causing crash.
Fix will be done in the next version.