Drag'n'Drop on Web Parts In Edit Mode Not Working When X-US-Compatible Is IE=11

Hello,

when the compatibility settings are above IE=10 the web parts cannot be moved between/within the web part zones.

Steps I have done to reproduce this on clean environment:

1. Created a new sharepoint publishing portal
2. Tested on the default page that web parts can be moved in IE 11
3. Downloaded the master page seattle from gallery
4. Replaced the following line:
    <meta http-equiv="X-UA-Compatible" content="IE=10"/>
   with:
     <meta http-equiv="X-UA-Compatible" content="IE=11"/>
5. Uploaded the master page to the gallery.
6. Published major version.
7. Entered edit mode on the default page.
8. The web parts cannot be drag'n'dropped.

Do you have any idea about a fix for this?

Thanks.