Numbering Wizard sometimes fails to add leading zero


I use the auto-numbering wizard and I have it setup to add a leading zero when needed. I have noticed that in some cases it fails to add the zero, it happens rarely and I can't see anything different about the files.

I will greatly appreciate your response and I apologize if this has been covered before; I searched for numbering, wizard, etc. and could not find any reference to this.

Leading zeros should only be applied if more than 9 files in a sequence have to be numbered.

It can depend on the file type.

See also ...
No leading zeros in MP4 track# field