Hi,
On our SharePoint Online site I am trying to change the master page on a sub-site but I am getting an error.
I have enabled publishing features in the site collection and in the subsite. When I go into Site Settings and click on "Master page", I get the following screen:
If I go into this setting for the main site, it works OK and I can change the master page no problem. For subsites though, I get this and I cannot find a resolution anywhere.
If I try and change the sub site master page in SharePoint Designer, this seems to work OK too ...
Can anybody help or have they seen this before?
Cheers ...