UPDATE: So I found out the source of the problem after inspecting the debug log for quite some time. A mod (of course, goddamnit). For some reason, the mod SRTS: Expanded bugged my game, causing me to have massive frame drops and consuming plenty of free memory. The presence of the mod alone (regardless of whether it was enabled/disabled) appears to have caused my game to crash since I created this post, and so I decided to remove the mod altogether instead of just having it disabled in which doing so allowed me to finally load my saves. Thanks Canute for the tips!
I hope this can be of help to anyone having the same issue. Although my case is pretty weird, basically, if you're having the same issue, look into your debug logs and locate any red lines (usually along the lines at the bottom of your debug log). They can help indicate the culprit behind any bugs you encounter.
I hope this can be of help to anyone having the same issue. Although my case is pretty weird, basically, if you're having the same issue, look into your debug logs and locate any red lines (usually along the lines at the bottom of your debug log). They can help indicate the culprit behind any bugs you encounter.