Bug can't save the president

So basically I am not able to play phantom Liberty with my current character I played through and beat the game and waited to play phantom Liberty either way I automatically fail the mission every time it Go's through normal mission conversation. Then song bird automatically tells me to hurry up then says I killed the president there is no delay I just automatically fail. If I make a brand new character and launch him into phantom Liberty the mission goes without any issues and I can proceed but I really don't want to I'd like to play with my current character however I can't.
Try to wait for few days after songbird call and meeting her at gate.
Best way would be to sleep to reset variables and do any pending quests that may have been left in middle accidentally.
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