Im having a issue with the preview option.
When i use it: on the first page it shows the changes i made to the default template perfectly.

When i choose a other page: it still shows my changes (as it should) but when i scroll down some parts from the default template appear??

Is this a error in the preview option? Or do i make a mistake? Im scarred to upload my website (replacing a old) it would show like that.

Can i have some support please?