After a bug were two combos i set the day prior on my gates the combos weren't working. I used a hacksaw to cut them both to put new ones, but after that i can no longer put new locks on the gate even after turning from a gate back into a wall. I had to destroy the base and build a whole new gate for the combos to go on. One of the locks was a 4-dial and the other was a 3-dial. Happened one more time after this. So this is kinda two bugs but i don't know why the combos changed on their own, I haven't had a problem since I cut them.