Are you using the save editor or using cheat codes?
If you want cheat codes, use this code below.
(Credits to rydoginator and AnalogMan)
I'm going to assume you know how to use cheat codes in Animal Crossing. So activate this code, then type
16A2 in the game (you can type in the game by pressing the
R button), then press
ZR + D-Pad Right. This will spawn an empty DIY recipe card. It doesn't have to be all caps you can type 16a2.
Go here and find the DIY recipe you want to spawn: You need the
DIY ID on the right.
Then type in the
DIY ID in the game and press
ZR + D-Pad LEFT. This will change the empty DIY card to the correct DIY recipe.
Code:
[Chat Buffer to Slot 1(ZR+D-Pad Right: Item ID|ZR + D-Pad Left: Modifier)]
80000200
580A0000 03779848
980AA100 00000000 00000040
300E0000 00000008
989BA0A0
511B1000 00000000
C013B400 00000030
400D0000 00000000 00000002
20000000
C011B400 00000066
400D0000 00000000 00000002
20000000
C011B400 00000039
C013B400 00000041
400D0000 00000000 00000002
20000000
20000000
C011B400 00000046
C013B400 00000061
400D0000 00000000 00000002
20000000
20000000
C015B400 00000000
400D0000 00000000 00000001
20000000
C015D400 00000000
C011B400 00000040
910BB100 00000009
20000000
915BB100 0000000F
94299100 00000010
946990B0
980AA100 00000000 00000002
20000000
310E0000
C016D400 00000002
80004200
A8900410 AC4723D0
20000000
80001200
A4900410 AC4723D4
20000000
20000000
20000000