Thank you for contacting us.
I can suggest you to try to completely reset your Visual Studio Toolbox
by following these steps:
Close all Visual Studio instances.
- Open the "%localappdata%\Microsoft\VisualStudio\14.0" folder and remove all *.tbd files.
- Using the "regedit.exe" tool, find "HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\14.0\ToolboxControlsInstaller_AssemblyFoldersExCache" and "HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\14.0\ToolboxControlsInstallerCache" registry keys.
- Remove everything from these keys leaving them empty.
After this you could use the Toolbox Configuration wizard to add required version of the controls to the toolbox.
Please get back to us if any further assistance is needed.