Hi! Thank you for checking the game out! Quick question, are you playing on Mac? I noticed that glitch only seems to happen with Mac users when the game isn't installed right! If you follow the steps that was written in the download instructions the problem should be fixed!
When you download the zip file, you need to extract the zip file into a folder- and when you open the folder, drag the "game" file (only the game file not the entire folder) out from that folder and into your applications folder. Once you get the game file in the applications folder, try to open the game file there- if it doesn't open continue clicking until it does and it'll eventually let it run. If you did this the right way then your game'll be able to save and let the game run/progress normally! Try redownloading and follow those steps again? Hope this was helpful!!