Encountered a bug with JMLS during a Combat Mission in ROTE just now.
I was in Phase 1 / 2 of the combat missions. I gained the 'Thunderous Applause ' unique buff for the mission. I had one enemy left with low health when I activated Luke's Ultimate. Meanwhile, because of the Thunderous Applause buff, everyone else assisted and defeated the last enemy. Because this enemy was defeated, the phase ended and cut Luke's Ultimate animation short.
Now on the Second Phase of the mission, Jedi Master Luke's health, turn meter and buffs are not showing on the screen. When calling Luke to assist, there is no indicator saying that you can call him to assist, and yet he does. When attacking or assisting, Luke doesn't move but the effects still happen as normal.