PS4 Update May have caused lost in-game progress!

I have just updated my PS4 to the latest after I completed a scene on the east coast of the Alpine Unrest island. I’ve opened the safe house there to be able to travel back. Game appeared to save but after the PS4 update, I’ve lost a few hours of progress as I respawn at another safe house in the middle of the island. Is there any way to re-gain the lost progress.