Deactivating the Woocommerce Admin plugin also worked for me.
I had the same problem but solved it by reauthenticate the original website first. ( The website i installed monsterinsights the first time before migration ). From then it was possible again to deauthenticete the copied website too.
Thanks. I changed my profile language from Dutch to English and it works great again. Now i’ll wait for the next _NL update.
