Coupon are not being added!

Hello, this version 3.4 is messed or something, I was creating a coupon called "test" to try this feature but after create it the page say "Coupon added." but nothing is created, any coupon is showing up.., Why?

Considering that I tried testing that coupon and clicking the apply buutton but nothing, not even a message telling me the coupon is working or not, anything. I can see that the problem with coupons is still there. And now I don't have the pop up showing up, I just created that thread too.
Very dissapointed, now my traffic can't register with this new wordpress version.

Please let me know!