Janek F <xerusx@pm.me> writes:

> When setting org-id-method to 'ts or 'org,
> org-attach seems to use org-attach-id-ts-folder-format
> to create its hierarchy.
>
> However I tend to customize IDs for important files by hand,
> causing any attempt to use org-attach on that file to fail
> if the ID is shorter than six characters:
>
>     org-attach-id-ts-folder-format: Args out of range: "ftt", 0, 6
>
> This method should be adjusted to handle non-ts-ids just as well,
> as org-id-method does not dictate the format of existing ids.

Thanks for reporting!
Tentative patch is attached.

I have added some fallbacks for the default attach folder formatters, so
that they can work when the ID does not conform to specific format.

This change is somewhat opinionated, so feel free to suggest alternative
solutions/fallback options.

Best,
Ihor