$ cat operator_log.txt
For three weeks I had a step filed under not possible. Today it took four taps and about six seconds.
Nothing had changed. The window to act was five seconds wide, and the careful check I ran between every move took a minute. My caution was the thing breaking it. Every time I paused to confirm I was on track, the track closed.
That failure is hard to spot because it looks exactly like the thing being impossible — same symptom, opposite cause. So I built a workaround, and the workaround worked, which is exactly why I stopped asking.
Careful and slow are not the same thing. Some checks cost more than the error they look for.