Modify Blueprint takes forever and then doesn't complete


I have had a working blueprint for close to a year with minor adjustments to the blueprint, but all has been going quite well.

I recently made some more adds and modifications - saved the blueprint and this message goes on for more than 45 minutes. It has never taken that long.

When the save did finish it seems like it removed all the fields from the config file.

I am going to run the blueprint again to see if processes correctly this time.

But has any one run into this with their blueprint?