The launcher crashes (or simply closes itself) any time you try to rearrange the mod load order? As a preliminary measure I would advise verifying the game files through the game's Properties window.

If that doesn't help, at the very least I can think of a band-aid fix, though I am unsure if it will play out in reality as it does in my head. You could unsubscribe from all workshop mods that are not the Framework, so that the Framework by default would have to be at the top. Theoretically, any mod you subscribe to afterwards should be placed beneath the Framework mod. Keep in mind even if this does work it's just a temporary workaround and you'll likely run into this problem again should you ever need to reorder the list again.

Last time the launcher crashed on me while manipulating my modlist, it was because I was subscribed to a mod that either no longer existed, or was set to private. Check your list of subscribed mods, unsubscribe from anything that is deleted, and try again.

Unsubscribe all mods except Framework and resubcribe works for now thanks.

Originally posted by SantaHatesYou:

Unsubscribe all mods except Framework and resubcribe works for now thanks.

Glad to hear it!