X_Y plot loses user settings undesirably, under what condition(s) ?
This one is confirmed [6179].
Once a document is finished and no more work processed, X_Y saves user settings.
Now, if at this point you perform some maths that generate error [red],
then X_Y plot returns to default, i.e: loses user settings.

RemToDo for Doctors.

I confirm Jean's remark

Fixed in last version. Try it.

Uni,
Appears to be fixed using this file and updating the legend titles. Thank you!

Wrote

Found the issue(s). See revamped file. Still having issues in that X-Y plot Labels for the legend *zap*Quick Sound Loss.smz (142 КиБ) скачан 128 раз(а).

X-Y Plot. If functions crash, *Zap* to the legend titles.

Funny Jean,
This was the problem I was having with my Sound calculation file

Wrote

Wrote

the function crashed in the solve block (Just the function,

The solve block does not crash the function not a bug.
That it does not compute indicates incorrect setup.
No bug in X_Y, re-edit the series name.