Hey man. Sorry you are having such a rough go of the Launcher. Let's see if we can get things sorted out for you.
This launcher is really difficult to use... How can I use my own progression and item mods in junction with these mods? And how can I load multiple mods?
In Advanced mode, the Launcher makes a copy of the game, and applies the selected mod you want. For Valmod Expansion, for example, it would make a copy and add the Expansion mod. However, if you wanted to play Valmod Overhaul, it would make another copy, and apply the mod there. This keeps the mod separate from each other, and avoid conflicts.
I guess first thing is first. Valmod? Doesn't work. Loaded it up and crashed on loading the particles. The friggin' particles, man, the quickest and easiest to load. Tried several other mods and got the same thing. Is nothing updated for 15.2 yet, or am I doing it wrong? I suppose it would be worth mentioning that I used the patch for bloom and fog before loading a mod. I'll validate and try again, without the patch.
Which Valmod were you trying to use? Are you using Advanced Mode or Simple Mode? Advanced makes a copy, as I mentioned above, while Simple just over-writes the mods in your steam folder. Simple mod isn't really recommended unless you don't have a lot of disk space.
Also the UI got bugged out when I went from SMX to another mod, and the description was frozen on SMX. Had to relaunch.
How did you apply the SMX mod? And to which Mod? Most Mods, like Valmod, already have a UI applied. It can be difficult to apply a custom UI to a mod that wasn't designed for. The extra workstations that some mods create need custom settings in the UI to work. If you applied an SMX UI mod to another mod, then workstations may not work.
About my custom mods... They got wiped when I loaded in another mod. So I have to redo the changes from the 1st of the month again. Kinda pissed. I would really like to see some sort of custom mod plug-in mechanic added instead of jumping through a million hoops just to *try* and get a mod in the launcher. And after you load a mod, how can you clear it from loading again? In essence, how do you un-mod the game from the launcher, without validating? Is that not a thing, or..?
I'm sorry your changes were lost. The Launcher is designed to apply patches to the vanilla version of the game. If you have custom mods you want to do, you could create a My Mod. There won't be a download link, so the Launcher will just make a copy of the game, and won't add anything automatically to it. You can then make your changes in that, and they won't get over-written.
Ill be here for the next two hours validating and trying to figure out what all I had on my progression. Message back whenever.
Good luck. Let me know if you need more clarification or support.