MIWA PR key has scratches due to falling, does not stick to cylinder

"I can't insert the key after it fell."

It seems that maybe because I dropped the key, I can no longer insert it into the cylinder. However, even after careful inspection, it could not be confirmed visually. Careful inspection with fingers and nails revealed a small burr on the tip. I proceeded to adjust this using a diamond file. I had to be a little more careful, but I was able to improve it.

We prepared a spare key for confirmation and confirmed that it was not a cylinder defect.