When you add RadBook as a content of RadTileViewItem and reorder the TileViewItem you get ArgumentOutOfRangeException.

Workaround: You can set the width of the RadBook.

When we have enough items so that the vertical scroll bar is displayed and then remove such amount of items so that they have enough space to fit in their container (and scrollbar is not needed) the vertical scrollbar is still visible.

Then the FlowDirection is set to RightToLeft and you start dragging an RadTileViewItem it looks flipped.

Allow the minimized items to be distributed in rows and columns simultaneously.

DECLINED: Duplicated with https://feedback.telerik.com/Project/143/Feedback/Details/114124-tileview-allow-setting-a-number-of-minimized-rows-columns 

Desinger crashes when using RowHeight=Auto and IsItemSizeInPercentages = true

Available in LIB version: 2016.3.1107

Add a DragMode that doesn't swap the items but inserts the DraggedItem on the drop position.

The XAML team has recently reviewed this request and will not be addressing it as at this time the team is focusing on the requests impacting the highest number of developers. If it is blocking for your work please contact us through the support ticketing system with details on your setup and a reference to this item.

An item disappears if you have PreservePositionWhenMaximized=true and Virtualization=true and you maximize/minimize different items a couple of times.

If you set the IsEnabled property to false the control disappears while it should be transparent.

With our Q3 2014 SP1 release an exception is thrown when you try to maximize an Item. 

Available in LIB version: 2015.1.1208

The RadTileView throws an exception if you initially have a maximized and selected items in databound scenario. 

Fixed in LIB version: 2014.2.1006

When you replace a business item in binding scenarios the old item is not removed from the tileView.