(keepass v2.45, this plugin v1.2.0)

I see the following error in the preview window, but only intermittently - I either see a list of passwords or this error.

Failed to generate a password.
 
Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

If I use the plugin as the default password generator, this just results in intermittently not getting a password at all in the password field.

The previous version I used (I think it was 1.1.2 but I'm not certain) would, with some more restrictive settings, give a list with some entries and others with just an error text along the lines of "could not generate" (sorry again, I don't remember the exact text). With this version it's more all or nothing.

If the new approach is by design, I think the previous approach was preferable.