Problems saving files

If I change the colour (or layer) of a dimension having made a mistake, when I save the file it will re-open with the changes not present.

I’ve tried changing things in different ways but nothing I do will work.

Is this a known bug and what can I do about it?

Can you try again to "Save As" to a new file name?

Jason Harvey wrote

If I change the colour (or layer) of a dimension having made a mistake, when I save the file it will re-open with the changes not present.

I’ve tried changing things in different ways but nothing I do will work.

Is this a known bug and what can I do about it?