How is this to be explained. For most of my current projects, the first character is now named .null and has codepoints: $00, $08, $09, $0D, $1D
One of my projects still has the first glyph named: .notdef but with codepoints $08, $09, $1D
For all of these projects, this glyph still has the rectangle shape.
How might this have happened? I did not do it intentionally. All my released fonts have:
0x00 .notdef simple codepoints: empty
0x01 .null empty
0x02 space empty
0x03 nonmarkingreturn empty
Do you only use FontCreator 7.5 or do you also use other software?
I have also used VOLT
Mike
FontCreator does ‘fix’ mappings on opening a font, but never deletes or reorders glyphs by it self.
So I’m puzzled about what happened, but we never intent to break things 
I have been looking at past backups to find when the problem arose. At that time I was working in two
directories, one for FC editing of pure TT files and the second for VOLT work.
After each session of FC work I would copy the TT files to the directory for VOLT work.
I never copied files touched by VOLT into my working directory for FC work.
At about that time I was changing many glyph names to be the same in the FC7 project file
and in the VOLT .FTP file.
Anyhow I will go ahead to correct the first glyph in all my fonts using the Glyph Properties window.
Mike
Thank you for the additional information. Do let us know if this issue reappears.