I was able to fix this issue while using Chrome by opening the Cookies Settings Page (chrome://settings/content/cookies) and adding the following URL to the Allowed list at the bottom of the page:
[*.]google.com
I’ve seen the recommendation elsewhere in the forums here to disable blocking of all third party cookies (which is an option higher up on that setting page) but I believe it’s more secure to “deny all unless expressly permitted”, than “permit all”. In this case use of G Suite justifies the override.