Sorry for the delay - I've been trying to replicate this with the game but with no luck. Are you able to delete your browser cache? This might be the issue
Are you using Firefox or Chrome? Typically you would go to Options > Settings or Privacy and Settings, and then look for a button or similar that says Clear Data
If the bug still continues, go to Settings > Privacy and Security > Cookies and other Site Data. Go to see all cookies and site data and then delete the specific cache that is under the itch.io site only. Then Ctrl F5 and check again