Version 1.2.2
This version was published on the 5th of July 2021.
It features a single fix for the cart form, not displaying the checkout buttons after an item is removed then added back again.
If you already have version 1.1.0 or 1.2.0, you can manually apply this fix, by replacing /assets/theme.js COMPLETELY with the contents of the file you download from this link: https://www.dropbox.com/s/azzztavpss3o1te/theme.js?dl=1
Try using Safari or a different browser than Chrome when editing the main javascript file. This is a very large file and Chrome tents to hang up when you copy & paste large amount of code.