RH 11 Lists are all set to 0 after upgrading to TCS 5

I just upgraded from TCS 3.5 to TCS 5.

I use FM as my source and RH WebHelp as my output.

My numbered lists all start at 0 now.

Before I upgraded, In RH 9 (TCS 3.5), I created RH Styles and used the following numbering format:

Format: <x>

Numbering: decimal: 123

Prefix Style: None

I mapped my FM style to the RH Style.

Numbers worked fine:

Now, they are all zeros:

When I open a topic and look at the HTML page, it has added this: start="0"

If I delete the start="0" text and then click back on the Design Tab, the numbers appear:

Where is the 0 coming from? I can't find a setting anywhere.

Thanks.