Pages Builder Blocks not allowing changes

I'm on my Homepage on the Pages Builder, and trying to change the copy in one of my blocks.

No matter what I do, even pulling it out and putting it back in, doesn't change anything.  I can change it and save it, but nothing in fact changes on the site.

I've run into this before but one day it did allow me to change a block.  This time around, it's been over 30 tries and nothing.

Anyone else experience this before or have any suggestions?
Thanks!

Remember to use firefox when making changes. Dont use internet Explorer. Make sure its the latest version (go to help and click on check for updates). After that make sure you have the latest version of flash too. You may also have to clear your browser cache.