The 1.16.4 update is a minor bug fix release.
It resolves two issues that existed regarding the support of the new Amazon PA API countries Belgium, Egypt and Saudi Arabia. For these countries, tracking IDs in Associate ID Sets and template translation could not be saved.
In the product section the analysis of the product usage did not work correctly for products included by ID. This has been fixed.
Also, a layout issue in Collection Management was fixed.
The complete ASA2 update history can be found in the changelog.Get ASA2 – The Affiliate Plugin for WordPress