[Teak and Ulmo]: Completion checkmark(green tick) disappears on refresh for randomized Problem Bank XBlock

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1

Hello everyone,

I’m encountering an inconsistent completion indicator(green tick mark disappearing in unit sidebar and course outline page of LMS) issue using the new React-based content libraries - beta version (not legacy) with the Problem Bank XBlock in the following Open edX versions:

  • Teak: Checked in Tutor 20.0.3 and 20.0.5

  • Ulmo: Checked in Tutor 21.0.0

Steps to reproduce:

  1. Create and publish a content library with 5 problems.

  2. In a course, add Problem Bank XBlocks.

  3. Configure different randomization settings in separate Problem Bank XBlocks taking problems from above library:

    Scenario 1: Show 4 out of 5 problems
    → At LMS side, Student completes the 4 problems → green check mark appears on the click of Next/Previous button→ check mark remains → refresh page → check mark disappears and never reappears (In sidebar as well as in course home page).

    Scenario 2: Show 5 out of 5 problems (no randomization)
    → At LMS side, Student completes all 5 → green check mark appears and persists after refresh and navigation (In sidebar as well as in course home page).

    Scenario 3: Show 1 out of 5 problems
    → At LMS side, Student completes the 1 problem → green check mark appears → refresh page → check mark disappears and never reappears (In sidebar as well as in course home page).

Questions:

  • Is this a known issue with the Problem Bank XBlock of the completion API in Teak/Ulmo?

  • Issue seems to be populating from back-end side. So, any recommended workarounds or fixes?

Thank you for any insights or pointers!

1 Like
2

Hi @braden or @kmccormick - could I get your :eyes: on this question?

3

Thanks for the report @meet1.

Could this be related to fix: apply library_content transformer to all ItemBankMixin xblocks by MaferMazu · Pull Request #37830 · openedx/openedx-platform · GitHub ? @braden if so, would you have time to re-review and backport that?

1 Like
4

@kmccormick Yes, I should be able to give it another look soon, but I was really hoping someone else could give it a second set of eyes as well. It seems like an important fix.

5

Hi @kmccormick,

Thanks for the quick reply!

I checked PR #37830—it fixes grades in legacy libraries by applying the transformer to ItemBankMixin blocks. My issue is different: the completion checkmark disappears on refresh only for randomized (subset) Problem Bank XBlocks in the new React libraries, while full display works fine. It’s about completion persistence, not grading.

Thanks!