This issue is scheduled to be fixed in 3.15.1.
Total RONs display in each activity for the entire length of the activity. E.g. if the crewmember is away from their home airport for an extended period, such as eight days and they have an activity for each day that requires an RON, the total RON count, in this case 8, is displayed in each activity instead of 1 RON per day.
Activity type is set to "RON" and "Duty Time".
Activity is set to "Each Day" and has a begin and end date that spans 8 days and is set to a different airport than the crewmember's home airport. Notice the RON count shows 8 when it should show 1.