New Super Mario Bros U + New Super Luigi U

[probablypablito]

I'm unable to dump this game despite it working fine. I'm using the web exploit version of dumpling, but have also tried this same disc years ago on old dumpling versions.

The disc is read by the Wii U correctly and I am able to play with no glitches. Sometimes I will get an "Error while mounting disc!" error and other times it'll crash halfway through.

Any thoughts?