After a server restart the combination locks cannot be unlocked from a gate resulting in having to cut them off. Sometimes the combination isn't the set combination and appears to be reset resulting in it needing to be cut off.
Some people report it still appearing it to be attached but the gate opens unlocked. Combination works but graphically is attached and able to open/close gate. If one logs in and out, it will allow you to pick up lock but not reattach it to gate.
Logging out and logging back in the lock is in the middle of the gate on the ground, it can be picked up, but can't be reattached.