im gonna be real chief...i have no idea what on earth the second half of your first paragraph ..down means in the slightest...
it truly is frustrating tho
from what ive heard down the grapevine by posting my Plea everywhere online...Its related directly to the mojang to microsoft profile conversion or someshi....
Basically the transferred profiles arent supported for the offline mode based on some security setting no one can change...Its pretty much a lost cause to try to do offline....
I got a few modpacks to work by messing with the mods in .technic and %appdata%'s .minecraft ....Took me awhile but like 2 of the 5 i have work to an
E x t e n t...As i have no idea if its the right way the game runs....Since i havent run them online yet lol
Seriously tho...goodluck... Technic seems to be an online only program from a few months/ years since and is a great modpack downloader...There should be someones somewhere that makes a conversion program to deposit specific functions n folders in the correct place in .minecraft in order to run the modpacks offline...Kinda like how Forge installs... Anyways stay safe tho
"a man can only dream as long as he has creativity in his soul"