Anyone ever seen this ?? weird issue with planes__circular moves toggle disappearing

Using 2021.1 SP5..

Measuring planes with circular hit pattern. They're autofeatures & points generated using the TTP_PLANE_CIRCLE method.

ALL of the above referenced planes had CIRCULAR MOVE toggled ON inside the autofeature dialogue box.

Program has run successfully over 30 times..has been locked in operator mode...nobody changed this routine/saved anything since the day I approved it and locked it down.



Today, all of a sudden, none of the autofeature planes have circular moves toggled on and now the probe crashes into the OD of the part.

I fixed the issue already...but why/how did this happen??? How did a totally locked down program that has run a few dozen times all of a sudden change a toggle for exactly 16 features (AND ONLY those features...not any others in the program)???

Any ideas ? :scream;