WPF application render issue
<p>I have a WPF application which somethimes behaves strange on different machines. 
This is the main screen of the application:</p>

<p><a href="https://i.stack.imgur.com/O90ii.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/O90ii.png" alt="enter image description here"></a></p>

<p>On some machines it looks like this on startup and you have to find the minimize and restore it to get fully rendered which is really annoying. </p>

<p><a href="https://i.stack.imgur.com/yVynv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yVynv.png" alt="enter image description here"></a></p>

<p>Any suggestions how to troubleshoot this problem or a possible fix?</p>