Multiple Google Accounts
Can I use multiple Google Accounts?
There is a long-standing issue with Google and support for multiple logins. This impacts all addons and not just Grackle.
In a single browser, you can be signed in to multiple Google accounts at the same time and when addons are launched it can be confused as to which account it is being run under.
We suggest only logging in to one Google account in a browser. Since you are using Chrome I take advantage of the “profiles” ability under chrome and use a different profile for each Google account I have.