As it says on the tin, it seems that a Submod that I made for TNO is refusing to load over it, despite it being coded as a dependency of it. I'm not sure what I am doing wrong given I've made a submod for this particular Mod just a month prior, and as far as I can tell I haven't changed anything. What is stranger still is that it works when I have it stuffed into a normal folder; it only refuses to work when it is trying to run out of the Steam Workshop. Is there a step I might be missing here that is blocking its proper enaction?

If you have the mod installed locally (as in, created via the launcher) the Steam Workshop version will not work.

You would need to delete the local mod or the Workshop version. Having both causes the game to not know which to use.