Has anyone else had any issues copying the flash disk to their SD card? I have f-900bt, maybe 1.5 years old.

 

I am trying to get a more recent backup before doing the 3.0 update. I am able to boot into testmode; the f-series reads the SD card just fine but appears to not be able to write to it anymore (used to work). The progress bar displays, then sits at the "preparing to copy disk" message for about 10 minutes before I cancel it. I do not remember it taking this long, am I just being impatient?

 

I have tried two different SD cards, my computer is able to write to both of them so I do not think it is the SD cards themselves.