When compiling the app with python2 and pygame backend, the build process raises the error:
https://gist.github.com/rafalo1333/ead06e9641624d3d6818b23b41f5c8cf
It disappears after changing android.copy_libs to 0 in buildozers.spec.
Following the errors, I found that copying libs in pygame bootstrap raises the issue.
https://github.com/kivy/python-for-android/blob/master/pythonforandroid/bootstraps/pygame/__init__.py#L68
I do not understand it mostly, but I think its somewhere near.