I have been exporting obj files and importing them into clip studio . Recently when I export or save the file results in 0 size . Not saving them. I added one file to another in nomad but that should not fail when saving any suggestions ?
Android I suppose?
Maybe try another folder, or change the name of the file (to something that doesn’t not exist)?
There is no known issue with OBJ export so maybe an issue with permissions on your device.