WN wrote:
>>
>> I think chapter titles are supposed appear automatically in the
>> bookmarks, no need for an explicit \bookmark.
>>   
> True enough. But should they appear twice ?
> I want a custom bookmark for the table of contents and list of figures,
> so I used \bookmark[chapter] to include these (once not twice).

Ah, I see now. Looks like a bug to me. I do not understand the code
well enough to fix it, however. I am attaching a minimal example for
Hans.

(meanwhile, you could use \bookmark without the optional argument).

Best wishes,
Taco