Sky3DS DiskWriter V202b1 eats all of my micro SD's space and acts buggy

Here is everything that happened:

I loaded my Sandisk 64GB Micro SD with DiskWriter V202b1 using template1005 (through this SD reader), then formatted the Micro SD with the software and wrote 3 games on it. Then I put my Micro SD on the Sky3DS and loaded it with my 3DS. The three games loaded fine and I switched between them perfectly.

But then I put my Micro SD back on DiskWriter to add a few more games and problems started...

Sky3DS DiskWriter V202b1 eats all of my micro SD's space and acts buggy