On any List I create on my site (Custom List, Announcements, Promoted Links etc) whenever I click 'new item' I am redirected to my site homepage, rather than the form.
I can enter items ok via 'Quick Edit' then if I try to edit one of those items, again I am returned to the homepage.
I've tried customising a List with InfoPath, same things happens. I then change back to the SharePoint form (via List Settings > Form Settings) and still the same.
If I try to link to 'New item' via sites/sitename/List/listname/newform.aspx again I am returned to the site homepage.
Any ideas please?