Unfortunately, version 2.1.1526 released on Thursday, August 3, contains a defect that under certain circumstances can cause damage to the encrypted file.
We discovered this on Sunday, August 6 whereupon we immediately withdrew this version, temporarily reverting to the previous version. Later that day, we released 2.1.1529 as a critical update. We also flagged the version 2.1.1526 as unreliable and all users who have an Internet connection will be notified at the next update check of this situation and prompted to updated.
Since then we have released 2.1.1532 as well.
We are very sorry for this defect which passed our release testing as well.