Similar problem for me too, images not appearing when they should and menus impossible to use on windows. Hope the problem get fixed soon.
Viewing post in Sins of Siblings (A Brother and Sister Story) comments
Hello, I'm currently trying to solve the problem. I'm sorry about the trouble you're experiencing. If you purchased the game and encountered this problem, I am giving you a bundle containing my other games as a short-term solution and to give you value for money. If you are experiencing this problem in the full version, could you write me an e-mail with the e-mail address where you created your Itch.io account?
wargnemagames@gmail.com