Experiencing Issues with Saving after Patch 3? Here is the Fix!
Do you encounter a ‘Failed to save game with error 516’ message every time you visit a trader?
The solution to this problem is simply to press the ‘Trade’ button instead of choosing the dialogue option for trade.
It also works if you interact with traders on the second attempt.
Hope this helps if anyone encounters this problem. Patch 3 is buggy!