I don't want to get any one's hope up as there's no guarantee that this will work for you guys as this may have just worked out of share luck for me but what I did to circumvent the issue was to load the corrupted save from the main menu, then pushed the "PS" button to go to the home screen. I then waited for about 5-8 mins, went back to game and for some reason my save loaded like nothing happened. I'm nervous to turn off the game and have kept it on ever since to make sure I don't lose the save again. FYI, if you're able to get the save working, change the quest that it's currently marked (especially of it's a Skellige quest) to a quest that's closer to were you are located. I hope this proves fruitful for you all.
I did try your method with a hope to load my save file, but it doesn't work for me
It looks like your method works for some... I will keep try loading different save files to see if any of 'em works.
It is such a shame that we have to go through such pain with this game.
I still think this game is one of the greatest games i've ever played, IF this loading save data is no longer an issue. a few dozens of glitches and bugs, I can live with... but, be unable to even experience a glitch or bug is just so frustrating and disappointing...
It is good that someone from Red finally replied to this thread, but it would have been much more great with the feelings of support from the developers if they had replied sooner...
I really do hope this will get fixed in a near future, before it gets outta hand