Hi,
Thanks for choosing Syncfusion products.
I am not able to reproduce the issue neither in 7.2.0.20 nor in our latest version. However you can try our latest version
7.3.0.20. I am not sure which OS you are using. But If you are still face the problem you can try this hot fix, if you are using Windows XP.
Few months back one of our customer reported similar problem. Our developers analysed on the issue and found that this is OS related issue, which already existed in Windows XP and this has been discussed already in the MSDN forums. Kindly view it in the below mentioned threads.
http://social.msdn.microsoft.com/forums/en-US/wpf/thread/5f7dd26f-4afc-4f21-a7fe-59a188df3fcc/Could you please try to install the hot fix given in the following link. This might resolve your problem.
http://support.microsoft.com/default.aspx/kb/943326Please let us know if you have any other query.
Regards,
Padmaja.