https://ww.wp.xz.cn/support/topic/purchase-event-firing-problems-after-version-3-4-7/
As I shared before, the last two versions, 3.4.7 and 3.4.8, work as expected. This version duplicates purchase events and browsers no longer send data to the pixel. If you want to fix the problem, you must roll back to 3.4.6, like I did, and succeed.
