In windows 10(Language:Korean), input bug happens in case of input Hangul to UltraTextEditor using by In Place Edit (UltraTextEdit, UltraComboEditor, ..etc... Edit for Input text)
After input text(Hangul) in control, if press "Enter", "Tab", Right Arrow" key, Operate normally.
But, If you lose focus while you type, Then last character disappear
I provide you with a video with the screen keyboard to illustrate how this operates on my side
Thank you
OS : Windows 10 Pro X64
Developer Tools : Visual Studio 2010 Premium
Infragistics : NetAdvantage for .NET 2010 Vol.3