Yup. Cardinal rule of programming.

"One step forward, TWO back-ups!"

I usually end up with 6 or 7 versions of my CNC programs, each with a different name, to avoid the problem. Gets confusing at times but nowhere near as frustrating as over-writing a known good file.

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“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now