Using any reservation form, and the “All Day” flag, reservations are generated. Then reopen the reservation which displays an “End Date” of year 5168… We’ve repeated this on a base product configuration and multiple browsers.
The following application fix was applied to resolve the issue. In Workflow Builder, open the workflow “triReservationManager – Synchronous – OnChange – All Day”. This workflow is located in the triReservation module and triReservationManager BO. Open the “Round” Modify task. Select the “Edit Map” link and scroll down to the triDurationDU field. Select the formula picker. The formula “86400000 * div(END-START, 86400000)” needs to change to “END-START”. Click OK in the formula picker, and on the map to save changes. Publish the workflow.