-Final schitpost-
Recovered my incompatible save in Pokemon moon, the following was my process.
This whole issue was caused by trying to move game from one SD to another, pokemon games don't allow this.
may also be useful when taking other games from one SD to another, IDK tho.
1) ask nintendo for help and get pooped on
2) Obtain R4i 3ds b9s flashcart purchased through that slightly shady site in china, arrived in about a week and a half (one must do the shady email payment, don't misplace the decimal)
3) follow
https://3ds.guide/ntrboot to the letter
4) delete every game but moon from the SD you are moving from (Not necessary if you are a lucky bastard/know what you are doing)
5) Copy 'Nintendo 3DS' file from old SD onto computer (Copy it like a million times if you intend on starting over ten or eleven times)
6) Delete 'Nintendo 3DS' file from new SD and replace with file from old SD (The entire file, lest ye start over ten or eleven times more)
7) Boot game with new SD to ensure you're getting familiar errors, this is how you know it's working
8) install savedatafiler
8) find the only unbroken data under the first tab in savedatafiler
8) delete secure values
8) pray to preferred god(s)
12) 2005 Sceptile recovered
I have become stronger, if anyone experiences similar issues hmu. I don't know how to dm here so one will have to initiate said dm.
I am willing to wade through your 4gb 3ds folder if you can find out how to send it.
I don't actually know what I am doing, but I'm good at pretending. Sometimes, that's all you need.