Hello,
I’m sorry to hear that the purchase limit isn’t working for you! I just tested this out on my end but was not able to recreate the issue; the purchase limit was working correctly in my local environment. However, I took a look at the event you mentioned on your site, and I was able to add more than 2 tickets to the cart as you described.
Can you try testing for conflicts with your theme and other plugins? If you don’t have a testing site currently, I would recommend the free WP Staging plugin, which will let you create a quick copy of your live site that you can use for testing.
Let me know what you find!
Thanks,
Jennifer