I'm a daily user of 1Password Anywhere. Since installing 4.0.0b15 (Build 20140425) I've been unable to use it - until then, it'd been working just fine.
On opening the html file for 1Password Anywhere in my Dropbox, I get the following error message:
A problem occurred when loading the https:// dl-web.dropbox.com/get/1Password.agilekeychain/data/default/encryptionKeys.js file.
I'm asked for my Master Password as usual, but I inevitably get the following message when I click on 'Unlock':
Problem loading 1Password data file
A key data file could not be loaded and 1PasswordAnywhere cannot continue without it.
Please see this help guide for troubleshooting tips.
I can see encryptionKeys.js in my Dropbox in the location stated in the error message.