How to get back to saved progress in single player in Dying Light?

I had gotten to about 85% of the story in Dying Light when a buddy invited me to join him in his game. He was about 2%. So I joined him and now that I have finished playing with him, I can not get back to my last saved game. I keep starting a 2%, even if I'm in Single Player mode.

I've tried restarting the game and changing from multiplayer mode to single player mode, but every time I launch the game, I start back at 2%. There's no option to choose which game you want to continue, or load a past saved game.

Note, there's no "save" or "load" mechanism in this game for the player. It uses checkpoints and you just pickup where you left off.

Is there any way to get back to my game?

This seems to be a common bug.

A workaround, as offered by someone on the Steam forums, is to not 'Continue' the bugged saved game, but, instead, select 'Play' in the main menu, and choose the correct saved game file there:

What I've noticed now, after logging on earlier, is that there was a 3rd .SAV file somewhere, connected to the server side of things. Most times, 'Continue' loads the correct .SAV, except when a multiplayer server is involved [..] It loads some obscure, hidden .SAV file. I only have been able to find two .SAV files in my asset tree; my BTZ.SAV and my COOP.SAV files. I'm assuming that these are the files referenced when logging on. I'm assuming the COOP.SAV file is my last saved game on log off, when you exit the game environment with 'QUIT'.

When I logged on, I was presented with the 'Continue' menu choice; doing so put me back some .SAV file when I was in a joined server; not part of any save I wanted. Selecting 'Play' gave me the Campaign option, which was my last correct COOP.SAV file. Selecting 'The Following' gave me my correct .SAV file in that branch.

Once I entered the game environment and did some things, then quit, I was presented with the correct .SAV file with the 'Continue' menu choice. So, for me, the take-a-way is to NOT choose the 'Continue' play choice after engaging in MP gameplay; instead, enter Play and then choose the correct .SAV point from either the Campaign or The Following menu choices.