I am trying to create two blocks and save them.  I could not create a block and restarted my computer.  This allowed me to actually create a block and save it, which I did to the desktop.  I opened a different sketch and created a block and clicked the green check mark but it would not turn the selected lines into a block.  reloaded my saved setting and it allowed me to make a block and save it.  I tried, just out of curiosity, to make the same block and was not able to. 

Any ideas?

Thanks,

Rich