I can't believe I've done this. I did not realize 1.12 and 1.12.2 were different. I assumed everything from 1.12 would be supported on 1.12.2. The mod pack runs on 1.12. I've downloaded the correct Forge version: 14.21.1.2443. I still run into the same problem. The Technic Launcher detects the mods need this forge version to run.
I've tried saving it as an executable Jar file from the Universal link.
When downloaded from the Windows installer, it saves as a file folder. Open the folder and it is a JSON file. Saving as all three of this doesn't seem to work.