Under “Show Calendars” when trying to add, remove, check or uncheck another users calendar I get an error box with the following message: An internal error occured during: “Loading Data”.
Under details I there is some additional text:
An internal error occurred during: “Loading Data”. java.lang.IndexOutOfBoundsException
Access rights to the other users maifiles are ok. I can open them directly without problems and see all calendar entries.