Several third-party "Mod APK" versions (like or v122a ) come with integrated fixes for offline play and pre-unlocked content.
When downloading your mod, ensure you download the specifically designed for that version (usually v121f or similar). yugioh duel generation mod unlock all cards fix
Are you having trouble with a or is the game simply not loading your deck? Several third-party "Mod APK" versions (like or v122a