Update: There are at least two JIRA issues reported about this bug. Check them out below and vote on them so they will be fixed:
SVC-2060 and SVC-2112.
It seems that often when an elevator is in a region that is prematurely reset or crashes, the elevator stops working until a new one is rezzed. With the region outages today my two main elevators stopped working but my demo elevators did not, so it seems like it MAY be tied to the number of floors. I haven’t been able to track down the cause and I am unsure if it is a problem with the elevator scripts or that the region is corrupting the scripts in the elevator when it crashes.
So if you come across your elevator just not moving period – such as it will do the install, and start to make noises, but just sits there, you will need to rez a new one. This isn’t as bad as it sounds because you don’t actually have to rez a new car from your inventory. Just edit your car, hold shift, and drag on one of the X, Y, or Z axis to create a copy. Keep in mind that the NEW copy will be rezzed in the ORIGINAL location and that you will have moved the original car so delete the car that has been moved out of the shaft.
Now all of your notecard settings are intact and you just have to reinstall the car.
I’ve been monitoring one of my cars with a chat listener to see if the car has any scripts that crash (stack-heap collision) and after it stopped working there was no evidence in the log of a script crash. So if anyone can possibly reproduce this scenario I would be entirely grateful.