Infinite Loading DX11 Sept 18th Patch
It's not you, it's them (for the most part).
If after removing all of your mods you still cannot get into your saves using the load game > resume, method, switch back to DX9 and the issue should be resolved.
If the DX9 switch is missing in your game graphics options, quit, and enter the value manually in the EA Desktop app by clicking manage > view properties > type in -dx9 > click save
Obviously, this is less than ideal, DX11 has been buggy from the start, while it brings greater graphics performance and the ability to use more advanced reshade shaders, once again, I'd recommend protecting your most critical saves, and only playing those saves on DX9 until a solution can be found for this issue.
Presently, I take screenshots on DX11, but do gameplay on DX9, and ironically, DX11 doesn't allow my current save to load when I have all mods removed, but it does at least let me get into my one household with my CC folder, I just cannot travel away from the home lot without infinite loading.
*I spent cumulatively 5 days extensively testing this bug back in July with my own CC folder and there is no rhyme or reason for it. There was no consistency in this error occurring with CC, saves, lots, etc. the only time it occurred was when playing with DX11, and after generating a completely fresh EA Folder. Save yourself the headache, if your lots were fine before the update, and you have updated all of your mods but still getting the infinite loading screen with no error code, try doing this first.*