Update on everyone's replies:
No it has nothing to do with the saves themselves, they are not corrupted or have been tampered with any any sort of way. The problem originated with the new update's introduction of a loading screen (as opposed to the previous waiting until the game changes to the loading save). The game ran absolutely fine and without any major hiccups or bugs before the newly introduced loading screen. I have now tried uninstalling and reinstalling, completely shutting off all forms of antivirus detections & halting that involve the itch.io programs (including itch.io program itself), I tried creating some new game and saving the game only for the newly saved game files to be deadlocked in the infinite loading screen as well, I know it is not a compatibility issue either because the game launches and runs just fine (save files are the main issue due to the newly introduced "Now Loading" screen. Honestly, I'm kind of at the end of the rope here on what to do, I'm basically be playing without any saves now.