This "used" to work for me.  Recently, I had to edit a template that isn't used very often.  Now, I have to switch back to my "normal" invoice for every new invoice.  I'll click Save and New, and the odd ball one comes back up, haunting me.

I vaguely remember this happening a long time ago.  I believe I had to copy the odd one, edit it to make it the normal one and rename it.  And delete my old "normal" one.
Also happened around the same time our Company address would get mysteriously changed.   And recently having that problem again too.  Hmmm.

Any thing change that would cause the sticky mode to not work?
QB desktop pro plus 2018