I have now fixed the issue with not being able to detect Cast, Director(s) and Genres with the Filmaffinity.com movie provider, new version is 18.104.22.168.
To get the new version launch TViXiE (must be version 1.3.2 or newer) and do the following:
1. Click Tools->Update Manager
2. Click "Check for updates..." button
3. Check the "Show only newer or updatable" checkbox
4. Select the Filmaffinity.com provider in the list
5. Click the "Update" button within the Filmaffinity.com provider selection.
6. Restart TViXiE and you're done.