I've developed a physic object that disable its physics after each movement (that accours approx each second or less), this causes the physics turning ON/OFF 3600 times per hour, so it easily reach 10.000 on/off status within the day, after a certain amount of status changes the physics get disabled permanently (ticking/unticking the physics via the object editor, or enable/disable it via SLS does have no effects). There's no way to enable the phisics again than taking the object into the inventory and rez it again (or rez another copy indeed): linking it to a linset, does not solve the problem, the "single" primitive remains with "no phisics enabling" bug. I've experienced this 100% of the times (leaving the object "hopping" during the night) both on havok1 and havok4, i've even deleted each script inside it (after the bug occours) but the bug remains. Actually i've left a copy inworld of an object affected by this bug, so i can demostrate it is "unmovable" whenever the "Physical" state is enabled via the editor.