Hi Francisco,
This is a known issue Defect #1805 with our control and this is fixed with the 4.2 version.
I would like to suggest you an upgrade to this version inorder to address your problem.
http://www2.syncfusion.com/Installs/v4.2.0.37/syncfusionessentialstudiosetup.exe
Unlock key :
Please contact our sales team (
[email protected]) to get an unlock key for this version.
Thanks for using Syncfusion products.
Regards,
Anu.