XamlParseException when minifying the XAP

Hi team,
We are facing below list of issues with telerik test studio. We would like to know what will be the best approach to capture and run automation test cases for Silverlight web application.
Using telerik test studio we have automated our Siliverlight application but some of the test cases getting fails. Sometimes it works sometimes not.
1.	Test step to select an item form Dropdown/ComboBox fails.
2.	New version (2015.3) of telerik test studio take longer time to start execution of test cases from Visual studio. When we execute test cases from test studio, it run faster won’t take time to start execution. 
3.	Today’s captured/modified test cases works fine but the same test cases we run on next/later days than it fails at certain steps. Like element not found, not able to select an item from dropdown etc.
4.	Some of the test cases get fail when we schedule it but the same test case works fine we run it individually.
5.	We are using TFS for source code repository, Sometimes when we open automation project in visual studio than all test case files get checked out though we have not made any changes.
6.	Not able compare two different version of one test case file(if two user works on same file and one has checked in it and another one is taking latest to merge both file).
Please provide resolution of these queries. Continuously we are facing these issues.
Also let us know what are the best practice to work with telerik test studio for web app automation.

When RowStyle is applied to RadGridView, AlwaysVisibleRow part disappears after adding a new item.  The problem occurs only when the style is applied explicitly. 

The RibbonWindow Title glow effect is remove when the theme is changed dinamically

The RibbonView TabStrip ScrollViewer is displayed unexpectedly when there are inactive ContextualGroups.

When the groups of a RadRibbonTab are collapsible the scroll is shown just before the groups collapses.

When the RadRibbonView ItemsSource is populated with RadRibbonTabs and one of the tab items IsSelected property is set to True that item no longer can be selected.

Custom color does not gets applied in the exported file (no matter if you export to .xslx or image file like .png ). The problem occurs if Alpha Transparency of the color is specified. 

The XAML team has recently reviewed this issue and will not be addressing it as at this time the team is focusing on the bugs impacting the highest number of developers. If you have encountered this issue and 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.

Workaround:
Set the Background of the RadCartesianChart to White.

In UIElementExtensions, IsAncestorOf crashes when the element parameter is of type Hyperlink.

The xaml team recently reviewed the status of this issue and won't be addressing it in future. 

If you are using PopupExtensions for Silverlight to set Placement of the Popup and you zoom your browser, the Popup will not be on the correct position if the element in which you've defined the Popup has Margin set.

Spellchecking specific text throws NullReferenceException. Specific example would be '..)aaa' text.

In the Office2013 theme for both SIlverlight and WPF in the latest version, the RadTabItemStyle has the Office Black for unfocussed tabs.

To fix this I added the lines:

        <Setter Property="Background" Value="{x:Null}" />
        <Setter Property="BorderBrush" Value="{x:Null}" />

Not sure if that is the right place to fix it, because in the previous version of the Office2013 theme (where the RadTabItem had the right style) those 2 lines were not present.
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DECLINED DUE TO INACTIVITY.

Since the Q12015 update, if you add a RadCalendar to a project, and try to use the No XAML binaries with the VisualStudio2013 or Office2013 themes, the designer will crash. 
Sample project attached.

Annotations are not positioned correctly, when the vertical scrollbar is visible.

The fix is available in LIB Version 2014.3.1319.

Problem with finding dependencies not statically known.

Hanging the UI for bigger xaps.

Change the version of the assemblies so the Visual Studio start diferentiate them from the original

Support PRISM / MEF in Xap minifier.