[Ruediger Kopp]

Customizer  problem has didappeared in the meantime.
However the problem with mixed entries in header and footer remains.
For blog page  calls like   …blogpage/category/xyz…  entries  of headermenu and footermenu are displayed together in both the headermenu area  and the footer area. For a direct call of the blogpage (without category)  or of a single entry or any other page header and footer show correctly only the respective entries in header  meu and footer.