Google Chrome v80 blocks now Cookies, which haven't set the SameSite attribute. The other browsers will add this in the future, too.
Currently you can bypass this:
View attachment 2143
- go to chrome://flags
- search for SameSite
- set SameSite by default cookies and Cookies without SameSite must be secure to Disabled
- Restart Chrome
Just come back to the game aftern some time away and thought I'd try the game in MS Edge, but getting the same issue there. Any known fix for Edge?