Myatu,
all problems resolved.
Everything is working fine again.
Thank you so much!
Hello and thanks for response.
On the setting page i have set “background-perforaties-11.png” as the default background-image. (i don’t use category nor tag). The problem after updating WP en BGM is, that it is impossible to override this on page level. On the contact-page for instance, the visible background is “background-te-huur-1.jpg”. This is inherited from settings on page level BEFORE i updated WP en BGM. I can’t get rid of them now on page level. It’s impossible to chose a different background in page editor. This problem is the same for all pages. My English is not quite elaborated, so i hope it’s clear what my point is.