Linespacing set in Options for new documents reverts to 1.5x.

When I set the line spacing to 1.0x in options Options>Editing>Formatting for new documents it returns to the system default of 1.5x line space when adding a new document to an existing project. Is this a bug or am I missing something and doing it wrong. BTW, I love Scrivener.

Indeed Scrivener uses 1.0x spacing by default(and not 1.5x).

Most likely you have set a project specific formatting in Project > Project Settings > Formatting, which overrides the global Options default text formatting.

It could be that some new projects from templates have project specific text formatting, which differs from the global Options text formatting.