Yes, sadly there are a lot of bugs, the ascii characters for checkboxes not working in webgl because of utf-8 was a surprise we did not expect :D captcha is accidentaly set as document color as you mentioned and yeah you have to reload when you wanna play again.
Though it’s important to note that we are working hard and majority of these things are fixed and it has even more documents! So feel free to come back after voting period is over and we will have an updated version here! :)
But thank you for playing and for your kind words! :)