Dried out Copics?


 Do you use Copic markers? Have you ever opened one and found that it was dried out?  I don't mean that it was out of ink. I mean that the nibs are hard with dried ink - both of them - and the pen is unusable.

I've had this happen several times now.  All five markers in the image above are just gone.  I don't know if the caps are faulty or if there were cracks in the marker caps somehow. I always "click" them closed when I am finished using them. Always. 

I've replaced these pens, but that is not an inexpensive endeavor.  Last time I tried buying new nibs and adding ink to the pen but I'm not sure that worked.  I'm going to try to regenerate the YG07 in the picture and then watch it to see what happens.