It's been too long to edit my posts from yesterday, but I feel compelled to correct the version numbers so as to hopefully prevent someone else from making a dumb error like I did.
Briefly, I was using 6.0.9. A few days after starting it wasn't working out for me so I decided to rollback to a previous version using an *.enc to restore.
Unfortunately, I rolled back to version 5.0.29 but used a version 5.1.7 *.enc backup file. This created a few problems. Today I had to uninstall 5.0.29 and reinstall 5.1.7 in order to use my data (and I thank guardian support Anthony for helping me with this task).
So the moral of the story is to make sure if you restore from a *.enc file make sure you use the exact version of Amazing Charts that created it.
I made the suggestion to Amazing Charts, through the suggestion portal, that the version of the program be appended to the *.enc file, just like the date and time are.