I am currently using a 4.1.1 version. With the Coupon Code created, the discount rates are running correctly and the registration process is completed, but the coupon code information used by the registration person is not recorded as Coupon_id.
And also the number of coupons usage is not recorded. A coupon set to use once can be used repeatedly.
and i am not sure but it starts after i updated mariadb to latest version for update joomla 5 latest version
Actually, it was a bug in the extension and I fixed it yesterday. Please access to My Downloads menu item, download latest package, update it to your site
After that, check it again, the issue will be fixed
