[PC] Load Save Error

I have a bug where I can no longer load my current save. I get a load save error and am forced back to the main screen. I've seen other people with the same issue and none of their suggestions have worked for me other than loading back to a save at the lighthouse. This is extremely inconvenient because some quests are long and if my game crashes, I'm screwed. I'm playing on a PC and the game is installed on my D: drive. None of the patches fixed my save and I pretty much just can't play the game. 

Here's my PC specs: 

Device name    DESKTOP-[removed]
Processor    Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz   2.59 GHz
Installed RAM    16.0 GB (15.8 GB usable)
Device ID    [removed]
Product ID    00325-81686-01032-AAOEM
System type    64-bit operating system, x64-based processor
Pen and touch    No pen or touch input is available for this display