Unity 2019.2 Build fails duplicate Facebook

Hello everyone,
I have following error (see attachments) on Android an iOS. The Build either crashes early or runs endlessly, what can I do?

All Unity 2019.1 Builds worked well, I am using Facebook Unity SDK(not Gameroom) and Google Play Games Plugins.

Any ideas? Thank you in advance

I can confirm this exact same error, see my post in: `Facebook.Unity.Settings' has already been imported error page-2