When I add a conversion link to a snippet in WCO, it doesn't seem to save it, even after clicking "commit changes." Maybe it just looks like it doesn't but it actually does save... Either way, I performed a test to see if the conversion tracking for the two variants I created worked, and nothing changed with the conversion rate within the testing tab.
So I am not sure if the issue is that conversions are not tracked since the conversion links are not being saved, or if it takes some time for the data to populate in the testing tab. If the data is not displayed immediately, how long does it take?