I just tried to encrypt my files using encfs4win and configured it in a way that I can use boxcryptor on my phone and tablet.
If I connect to the encrypted directory I can read and decrypt all files without problems. If the files are updated (with the same name) or if I empty the cache and try to decrypt the files again, I get errors, i.e. the encryption fails. After reconnection to the directory (and again entering the password) all works again fine, until the next file update or cache emptying. I'm using boxcryptor classic on Android 2.3.6 and 4.1, both behave similar.
What can I do?