Detection and repair has been added to San Andreas saves (all versions except mobile 1.05-) for the King in Exile glitch.
This fixes a glitch that occurs if the player dies during the phone call after the King in Exile cutscene. If this happens, the player will be softlocked because the King in Exile mission is complete, but the end of the phone call unlocks the next mission and updates the map markers. This fix will reset King in Exile, allowing the player to trigger it and the phone call again.
Reloading an earlier save is preferred if possible, as this fix is currently experimental and should be a last resort.