2.2.8 is working. but you will need some things to fix in for android and ios.
i build for android only now.
its just gradle issue. building in android 3.0.1 and gradle 4.1 / 4.2 .
do you have real setup for buildbox 2.3.1 ????
its working fine with modules 2.3.3 but i notice when i close the project and reopen it all my work gone like never done before.