SUMMARY
The Advanced Renaming "Information" dialog lists the following (See below) as the correct syntax/usage for adding a Sequence Number. This is incorrect. The application has no way to determine if you intended to use "#[options,start]" or "#[options,step]" as both the "step" and "start" options are integers. In reality, the application assumes that "#[options,<int>]" is in the format "#[options,start]".

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#                        Sequence number 
#[options]               Sequence number (options: c = file counter aware, e = extension aware, f = folder aware, r = random aware) 
#[options,start]         Sequence number (custom start) 
#[options,step]          Sequence number (custom step) 
#[options,start,step]    Sequence number (custom start + step)
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The following line should be removed from the advanced renaming information dialog:
"#[options,step]    Sequence number (custom step)"