src/types/unitframe.lua

@@ -425,6 +425,7 @@ function UnitFrame:RegisterEvents()
         end
     end
 
+    secure:RegisterEvent("GROUP_ROSTER_UPDATE")
     secure:RegisterUnitEvent("UNIT_AURA", unit)
     secure:RegisterUnitEvent("UNIT_HEALTH", unit)
     secure:RegisterUnitEvent("UNIT_MAXHEALTH", unit)
@@ -467,6 +468,13 @@ function UnitFrame:UNIT_ABSORB_AMOUNT_CHANGED()
     self:UpdateShield()
 end
 
+function UnitFrame:GROUP_ROSTER_UPDATE()
+    if self:HasUnitChanged() then
+        self:UpdateAll(true)
+        return
+    end
+end
+
 function UnitFrame:UNIT_AURA(unit, info)
     if self:HasUnitChanged() then
         self:UpdateAll(true)