Trying to Revise

I made a word cloud the other day and went in today to revise it by adding different numbers to various words. When I saved the changes and then hit Visualize, nothing happens. It seems to be grayed out. Help!!! Is there an edit button somewhere that I am missing?

Thanks for your help.
Pat

Could you please advise what operating system and browser (with versions if possible) have you used?

Could you please send me screenshot of "grey out" Tagul generator form?