BUG: Regal Authority doesn't work in solo missions

in Bug Reports
King Ezekiel's power, Regal Authority, is supposed to make survivors retaliate when attacked. In a normal mission with multiple team members, everyone including Ezekiel retaliates whether they have the skill or not (like it says it will do). However, if you take King Ezekiel into a solo mission, like "Last Man Standing" from Season 7a, he does not retaliate when attacked.
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Hero traits do work on solo missions.
But "Last Man Standing" Season 7a is Michonne on the solo missions, not Ezekiel on the first two missions.
Edit to add, I've completed "Last Man Standing" and can't remember or check if the final missions are solo but if they are his trait should work if you use him.