Hi, permissions on mac side are for some files set to "unknown permissions", on other files "read/write" (but these cannot be written). Theres absolutely no pattern to reproduce this issue. And there are absolutely no problems with unencrypted files. This issue is only on the EncFS mounted volume, crypted with BoxCryptor/Win.
I used the previous version (installer) for snow leopard with great satisfaction for several months - and it worked great... with the same files/dropbox/BoxCryptor-encrypted files. So what can I do? Current workaraound: Virtualised Windows-OS :-(