Simplify3D User Forum

I am getting same error when trying to save to SD card. I saved to local HD no problem. I tried 5 different file names, down to as simple a JFG.X3G and still got the error pop up. I have never had this before and saving straight to SD was my standard routine. I am running S3D 4.1.3

.......aaand I just figured out I don't have enough space on the SD card to store the files. A more descriptive error message would be helpful and save a lot of time troubleshooting.