HMD Global has pushed a new update to the My Phone app via Google Play Store. The update fixes the issue of login cookie not being passed when browsing the Nokia community forums within the app.
The sign-in was broken for a while and it is finally functional again. Nokia community is the official place for Nokia users and fans to unite and discuss all things Nokia. Even though most of the threads in the community are complaints, there are several interesting discussions along with some contests being conducted from time to time.
If you were one of those facing the sign-in issue, make sure that you install the latest update to the app. You can visit the Play Store listing to update manually or wait for the Play Store to auto-update the installed apps over WiFi.