Check that the GA event are being attached to the appropriate dropdowns, you can inspect this in the network tab and logging in the JS.
If you want to you can install Chrome extension 'Google Tag Assistant' and actually look at the tags being fired. But given this is an exact copy of what we currently have, isn't necessary.
Done
QA
Issue / Card
Fixes https://warthogs.atlassian.net/browse/WD-12082