Confirmation of JR Pass Validity on Kyushu Trains.

Hello all, I am trying to plan trips to see the Omisaki and Shimonada stations. Since the JRPass calculator on this site is a bit limited when showing and breaking down transfers and potential upcharges, I have been trying out the calculator from Japan Travel by Navitime. For some reason, their calculator is showing a full price fare of 14,290 yen on various example bookings at the end of June the Kamome between Takeo Onsen and Isahaya with or without a JR Pass. I just wanted to double check that the Kamome and Relay-Kamome trains were still fully covered by the JR Pass? Thank you!