i did send the crash report. can't upload save file can neither find the file nor any button on the forum to add a file to my post.
You will find your saves in the following location for main Epic branch:
C:\Users\%username%\AppData\Local\sins2\saved_games\1008\single_player_user
You can't upload saves here, but you can link them to us from another location like Google Drive, One Drive, Dropbox, if you have one of those services. I'd be interested to see the save to check whether the crash happens on our machines as well. It would be helpful to us to get.