Discount is shown, after browser refresh / cart update / during checkout not shown anymore

Have either of you tested with the latest -dev version of Discount?

For the OP: What happens if you disable the price savings formatter module?

I have the same problem, but it seems to only exist for anonymous users.

Commerce 1.13
Commerce Discount 1.0-alpha8
Commerce Discount Extra 1.0-rc4
Commerce Coupon 2.0-rc2
Commerce Vat 1.0-rc2

This actually is a major problem

Let's work on the latest -dev release because that is where things happen. If you are not using that version please try it. Also, though frustrating, it's hard to fix something that is not reproducible, please add the conditions that it takes to reproduce the bug in the issue summary. Thanks for putting the version numbers in the issue summary as those should help narrow down the problem.

Also is it reproducible without Commerce Discount Extra or Coupon? knocked it back to Normal because it's not clear yet that this is an issue of commerce discount and not something else in a custom or integration module.

Just noticed I'm having the same issue, although unlike dmsmidt (#6), it seems to be happening for all roles, not just anonymous users. BUT, as ridiculous as this sounds, it's only occuring on my dev site, not on my production site, even though all modules and discounts are the same. I noticed it in the dev site while I was testing out a new discount, but saw that it wasn't happening on the prod site. So I set everything in the dev site back to what it was, so it exactly matches the prod site again, but it's still happening. To make matters worse, it seems to be disregarding all compatibility definitions and applying three discounts at the same time. I played around with sort order, but nothing changed.

Drupal 7.51
Commerce 1.13
Commerce Discount 1.0-alpha8
Commerce Discount Extra 1.0-rc4
Commerce Coupon 1.0-beta7

Discount 1 = 20% off regular price of Item A
Discount 2 = 40% off regular price of Item A for [commerce-line-item:quantity] greater than 9; not compatible with Discount 1.
Discount 3 = $6.40 off discounted price of Item A for [commerce-line-item:quantity] greater than 9; only compatible with Discount 1.

Updated to the latest dev release of Commerce Discount, ran update.php, flushed cache, flushed again.

When I enter checkout, the regular price is displayed with no discounts applied. Hit refresh, all 3 discounts are applied. When I view the log for the first event (where only the reg price is displayed), it shows the compatibility checks for all 3 discounts as False, False, False. But the log for the second event (where all 3 discounts are displayed), it shows True, True, True. It should be False, True, False for a quantity of 11, or True, False, True for a quantity of 1.

@dave, do you have differences in Drupal caching settings or PHP opcache/apcu between dev and prod?

@dmsmidt, I did have a difference in Drupal cache settings at first, but then I set the dev site like the prod site. No difference. Hitting refresh while viewing /cart or /checkout/* is, as OP said, like flipping a switch. [FWIW, sales tax with location condition (via commerce_tax 1.13) is correctly calculated every time... hooray]

Re: opcache/apcu - sorry, that's out of my league. Both sites (dev & prod) are running off the same server, so I'm assuming there is no difference.

Maybe there is a PHP or MySQL configuration difference between the two? Could you compare your php.ini values and my.cnf values between the two environments to rule that out?

@joel, both sites are on the same shared server at Inmotion, and both are configured by the same recursive php.ini. But---because of the shared server situation---I'm unable to access the my.cnf. [I only know this because I was recently trying to solve the max_allowed_packet problem and ran into a brick wall.]

What's the best next move? Clone the prod site and see if I can recreate the error? Uninstall modules on the dev site? Roll back the dev site to see if I can pinpoint exactly when it happened? As this and my previous posts have made clear, my knowledge/abilities are fairly limited.

Ideally it would be great if you could reproduce with the least amount of extra modules on something like https://simplytest.me/project Failing that clone production and replace dev and see if you can reproduce the problem.

I am having the exact same issue on my Drupal Commerce site. I can replicate this issue with a fresh install of Commerce Kickstart 7.x-2.40 and Commerce Discount 7.x-1.0-alpha8 locally with absolutely no changes, simply creating the discount. I can also confirm this is happening in a production environment (https://bookstore-prd.umn.edu), the site is not live yet if you want to test it there - by adding an apparel product to your cart.

The discount I created is 25% OFF APPAREL, Product discount, Product type = Apparel, % off 25, Discount dates, 11/01/2016 - 12/31/2016, Discount compatibility Not with any other discounts.

Once the product is added the cart you the discount applied can be toggled on and off by refreshing the page.

Commerce Discounts has been the biggest pain to work with, it hasn't worked at all - various bugs - since we have begun developing our Drupal Commerce site. I have put off looking at it hoping things would get sorted, unfortunately not the case. These seem like rather critical bugs as well. Discounts do not work at all.

-Tom

@Tom (jonaskills): Can you set the discount's Compatibility to "Any other discount" and then see if the problem persists?

If that's the case, I suspect your issue is possibly related to #2621526: Compatibility settings other than "all" causes Discount+Coupon to be removed.

@torgosPizza, Updated the Discount compatibility to Any discount and it appears to be working as expected now. Looking at the issue you posted in #17. Thank you much!

-Tom

This is a duplicate of #2621526: Compatibility settings other than "all" causes Discount+Coupon to be removed.