Updated Level Editor no longer loading mod assets

[cadely]

So I recently booted up the Level Editor to start working on my mod recently and noticed that there looks to have been an update to the Level Editor pushed through Steam around 12/19(ish ?) that seems to have broken the way the editor adds lookup directories for my mod's assets, as in none of my non-SOMA assets are appearing in the editor (though everything works fine when launched from the game's mod launcher).

I think it has something to do with the way the editor is put into mod-making mode:
Which, after several attempts at redo-ing the process, does not show the "Working on mod" message at the top anymore.

I'm not 100% sure whether this is a problem with my mod or Frictional's editor, but I've tested this on two machines having checked file integrity with Steam and set up the "HPL3" folder in My Documents with no luck. If anyone could check to see if they are having the same problem, I would hugely appreciate it! Thanks