Error importing from VRD 2011 .vrb file

Hello,

I'm investigating the migration from VisionApp's Remote Desktop 2011-Patch 3 (Version 7.0.3328.0) to Remote Desktop manager and having an issue while importing a .VRB file that has both the Connections and Logins exported in one encrypted file (Encryption scheme is AES-256 as far as I know).
The process is the following:

1) From VRD 2011 I selected the menu: Object > Export
2) It gives me only the option: Backup of Credentials, connections and ext. Apps (*.vrb)
3) Proceeding with this it asks for a filename and then for a password and it saves the file

Now when I try to import the file in Remote Desktop Manager (10.6.7 x64) (.vrd, .vre, .vrb):

1) The import wizard asks for a password which I enter correctly
2) The following error is displayed:

Unable to load the session from file!

D:\Temp\myvrddb.vrb

I was able to export the connections only in a .vre file and imported them successfully, however I have a lot of logins (credentials) and they were mostly assigned to different connections.
Could you please assist me in importing also the credentials too, this is the only obstacle so far in successfully transitioning to Remote Desktop Manager which is a feature rich solution for my work.

Thank you