I purchased the Cave Engine yesterday, but I am unable to download the Engine. It displays a buy now page if you click the itch.io link. I see there is a 'Already purchased?  The download will be available here after you sign in and we verify your purchase.' message at the bottom. I have logged into my uniday.studio account, but still the same. Does it take a while for the link to become functional, or is there something else I need to do? 

Hi, it doesn't take a while, our website automatically connects to itch to make sure your download is ready. But your account at uniday studio must be using the same email address you used in your purchase (here on itch), otherwise it won't recognize you. If you want me to double verify that for you, please DM me at our website (my profile: https://uniday.studio/user/UnidayStudio) OR send me an email at guilherme@unidaystudio.com.br with the email you used in your purchase OR ping me on our discord server and I'll be happy to help you. Which option you find more comfortable with. 

Thank you for choosing Cave and I apologize for the inconvenience in advance. 

Thank you, I can now access the download on your site.