I recently purchased the ender pro v2. I am new to everything involving 3d printing. I was able to set up the printer and made a first print with no problem. A week later I go for a second print and now my printer won't recognize my sd card that came with the ender. I did nothing different. I can see all my files on the SD card in my computer and it clicks into the printer no issues. But when it comes to reading it. I get nothing. Can someone please help. I tried the sd format download and it does nothing for me. Any one here have the same issue?