Thanks Rik! The \phantom stuff is following me since the good old Plain TeX days… :-)
Now I know how to get rid of it.

Best regards: OK

> On 7 Dec 2019, at 16:33, Rik Kabel <rik@panix.com> wrote:
> […]
> 
> Replace the \hphantom{...} with \dontleavehmode.
> 
> -- 
> Rik