@yellowfellow50 make sure you are using Export and save the data that way. Some browsers are not very good at keeping data all time, I had my account logged in at all times on Firefox but something bugged out on my computer so I had to log in again. Probably the progress is saved the same way, in some cookie.
He is not alone. I have been playing a fantastic game called Realm Revolutions, and that game is also full of lose-ends. That developer has started a new game, instead of finishing Realm Revolutions. I used to love that game but a new game from the developer means less, if any, further development on the old game. I really hope this is not becoming a trend
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 "Flover idle color"){kind=icon}
 "Pixel Gold Clicker"){kind=icon}
 "Crafting Idle Clicker"){kind=icon}
 "Revolution Idle 2"){kind=icon}