Sync between two Macs and iOS via iCloud [moved to email]

Dear Team
First of all love your App - great job! Everythings works fine between my MacPro and my iPhone. The Sync via iCloud works like a charm.

BUT unfortunately my MacBook is not allowed to play with them. The dialog always tells me that it "couldn't find 1Password information on iCloud"
Here are the log file (with the error):

Tue Apr 15 23:36:39 2014| 412009 [SYNC:0x7f853c2084c0:] S ubiquityContainerURLForContainerType: | Container url 1 file://localhost/Volumes/Extend/home/Library/Mobile%20Documents/2BUA8C4S2C~com~agilebits~onepassword/
Tue Apr 15 23:36:39 2014| 412009 [SYNC:0x7f853c2084c0:] S ubiquityContainerURLForContainerType: | Container url 2 file://localhost/Volumes/Extend/home/Library/Mobile%20Documents/2BUA8C4S2C~com~agilebits~onepassword/
Tue Apr 15 23:36:39 2014| 412009 [CLOUDKEYCHAIN:0x7f853c2084c0:] E loadProfileWithError: | Coordination error while loading profile file://localhost/Volumes/Extend/home/Library/Mobile%20Documents/2BUA8C4S2C~com~agilebits~onepassword/onepassword_data/default/profile.js: Error Domain=LibrarianErrorDomain Code=1 "The operation couldn’t be completed. (LibrarianErrorDomain error 1 - Unable to initiate item download.)" UserInfo=0x7f853c333bd0 {NSURL=file:///Volumes/Extend/home/Library/Mobile%20Documents/2BUA8C4S2C~com~agilebits~onepassword/onepassword_data/default/profile.js, NSDescription=Unable to initiate item download., NSUnderlyingError=0x7f853c333b30 "The operation couldn’t be completed. (UBErrorDomain error 5 - Could not yet find a peer to download this item from. Download will be automatically attempted when it becomes available.)"}

I checked the folder structure.
The folder /Volumes/Extend/home/Library/Mobile Documents/2BUA8C4S2C~com~agilebits~onepassword/ exists!
it has a "onepassword_data" and in this folder a "default" folder in it with the following files:
-rw-r--r--@ 1 username staff 3112 15 Apr 21:29 band_3.js
-rw-r--r--@ 1 username staff 3731 15 Apr 21:29 band_6.js
-rw-r--r--@ 1 username staff 1431 15 Apr 21:29 band_9.js
-rw-r--r--@ 1 username staff 281 15 Apr 21:29 folders.js
-rw-r--r--@ 1 username staff 916 15 Apr 21:29 profile.js

Any ideas on how to fix that?
I updated the app, waited 24h and restarted the machine multiple times to be absolutely sure ;)

THX in advance!