When you’re searching for your deck number, tap the text at the bottom of the screen, with the GG version number. Select only ‘C++.bss (Cb)’. This should narrow the search by a lot.
There’s a small percentage of users that need a different .txt file, you might be one of them. If you get the list working, save it and send me the .txt file.
I tried, but I could not. I don’t know how to fix it.