My dial safe numbered have drifted slightly. If a combination number used to be 25, now it’s a teeny bit past that. From what I’ve read, it comes from spinning the dial too briskly, and I did used to do that. For a short time, I couldn’t get into the safe, but read that article, added a teeny bit to the numbers, and it opened right up (not on the first try).
This, I had the same issue. Seems like what I did was wrote my combination down at the top of the sheet of paper, then wrote out combinations below it adding or subtracting one to each number and started working through it. Didn't take long to figure out which number had drifted.
I went from a digital to mechanical lock. Don't have to worry about batteries, emp, shorts, etc.
Since that I have quit spinning the dial and not had any more issues.