This is very strange. I have moved a couple of SP2010 sites on to our new Sp1013 server. The only change we needed to do was deploy the WSP in compatibility mode (to both the 14 & 15 hive) using
Install-SPSolution -GACDeployment -CompatibilityLevel {14,15} -Identity MySolutionName.wsp
The site has been live to the public for months now. Today a user discovered they couldn't get to the edit properties screen of a newly created page. I have had a look and tested and found that I can edit the properties on all of the old existing pages, but if I create a new page I get an error when I click 'edit properties' or 'view properties' buttons. Looking in the logs for the correlation ID I see this:
Application error when access /education/Pages/Forms/DispForm.aspx, Error=Item does not exist. It may have been deleted by another user. at Microsoft.SharePoint.SPList.GetItemById(String strId, Int32 id, String strRootFolder, Boolean cacheRowsetAndId, String strViewFields, Boolean bDatesInUtc, Boolean bExpandQuery) at Microsoft.SharePoint.SPList.GetItemById(String strId, Int32 id, String strRootFolder, Boolean cacheRowsetAndId, String strViewFields, Boolean bDatesInUtc) at Microsoft.SharePoint.Publishing.CachedListItem.FetchAllFields() at Microsoft.SharePoint.Publishing.CachedListItem.GetFieldContents(String index, Boolean refetchIfFieldNotFound) at Microsoft.SharePoint.Publishing.WebControls.SummaryLinkFieldControl.CreateChildControls()
Which looks like it can't load the DispForm.aspx. When trying edit properties I get a similar error for opening EditForm.aspx.
The forms exist. I can see them with SharePoint designer and I can view properties and edit properties of pages that were created previously. I just can't do it with newly created pages.
Does anyone know what is going on here?