If attempt to edit an xrRichText field in the report designer using the Formatting Toolbar menu at the top (alignment, font, size, etc), the report designer may hang in some circumstances. The only fix if it hangs is to shutdown the report deisgner and AyaNova.
This issue has been logged with the report designer component developer. As soon as they release an update, it will be included in an AyaNova 4 maintenance update. Maintenance updates within the same major version number are always provided at no charge.