Hi

Question Regarding: - Post migration
Environment: - 2013
Back Ground: - SharePoint migration from 2010 to SharePoint 2013 (Database migration approach)
Issue :- 1
After completing the migration, when a user click on the new task and or edit item we still see the same pop as we used to see in Sharepoint 2010,  what could be the reason for this behavior .

Issue :- 2
When a user click on New Task and when show more option is selected, for some reason the scrollbar disappears. And in the status bar we get the message Error on page and the info is as below

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E; InfoPath.3; MS-RTC EA 2)

Timestamp: Tue, 14 Jan 2014 21:45:16
Message: Member not found.
Line: 1251
Char: 17
Code: 0

URL :-http://company.com/sites/etc

Please advise

Satyam.

What list or library are you getting these errors on.

Have you upgraded the sites from 14 mode to 15 mode?

What browsers are you using and does that make a change?