Hi Raul,

Thank you for the feature request.

We recently became aware of an issue stemming from changes we implemented as part of an important security improvement. Specifically, we removed the now-unsafe BinaryFormatter with a more secure alternative. While this update was necessary to ensure a higher level of security, it appears to have caused unintended side effects that may affect the SaveSettings() and LoadSettings() functions of the RadFilter.

The filters that were saved previously were stored in a different format than the updated functions do, thus the expressions stored in previous version are no longer compatible.

We're currently researching for an approach that will allow converting the previous expressions to the new format and make it work with the latest security changes.

Regards,
Attila Antal
Progress Telerik