Looking at the console, it appeared to be giving an error because I tried to add a small EXE game to the project files as an easter egg and I realized browsers are probably specifically set up to prevent processing those in the way local folders work due to security issues and I can just include it still in a roundabout way even though it allowed me to save it as a project file and local storage without complaint.
I removed this and then tried saving as a project folder and it worked despite taking 15 minutes or so, but the game still causes C3 to stall trying to load from a project folder and the console gives no indication of anything happening in relation to loading a project folder. I went through and systematically deleted objects, layouts, files, event sheets, etc. and it eventually would open the game if I had very little in the project at that point, but it seemed to be purely random as to whether C3 hangs or actually opens it. It seems to be more likely to open the project and not stall as the project has less content in it. I tested this trying to open the project multiple times in different states and there is no clear indicator of it not just being purely random as to loading the project or just stalling. I've tried to look to see if I have any malware or anything and moved NWjs C3 and my project to different hard drives to see if that makes a difference and it doesn't.
Maybe it's something to do with I have 64-bit Windows 10 and Microsoft keeps seriously breaking it every update the past few years? So maybe they screwed up my computer where I just can't load the project like this? When I was forced to install the 2004 update, I kid you not, my computer couldn't boot up the first two times because of it.