Could you please open a support ticket and send us your project, so that we can investigate the cause of the behavior?
Additionally, maybe you could simply switch the spellchecking culture and not the whole SpellChecker of the editor like follows:
RadDictionary dictionary =
This seems to work fine on our end and it checks the words that were previously added to the control as well.
We're looking forward to hearing from you.
TRY TELERIK'S NEWEST PRODUCT - EQATEC APPLICATION ANALYTICS for SILVERLIGHT.
Learn what features your users use (or don't use) in your application. Know your audience. Target it better. Develop wisely.
Sign up for Free application insights >>