Learner cannot see class video or topic - just a blank page with title on top.

[cpauya]

Observed behavior

Learner cannot see the class topic or video - just sees a blank page with the topic title on top. The quiz section worked though.

The coach and admin however can see the class topic or video.

Expected behavior

Learner should see the class topic.

User-facing consequences

Learner is confused whether to wait for the page

Errors and logs

Took this from the Android VM at sdcard/Android/data/org.learningequality.Kolibri/files/KOLIBRI_DATA/logs/ folder. The debug.txt file has no content.

kolibri.txt

Steps to reproduce

1. Use the "Radina test channel" and TESSA for sample channels.
2. Create a coach, plan a class, then assign contents.
3. Create a learner, assign to a class, then access the class content.

Context

Tell us about your environment, including:

• Kolibri version: 0.13.3a0.dev0+git.18....205f downloaded the build 144 of Android .apk from BuildKite
• Operating system: Android 7.1.2 on BlueStacks emulator
• Browser: n/a

[mrpau-julius]

Confirm, this issue is also exist in Android devices OS version 7 and 9.

[mrpau-julius]

This issue is on the Kolibri-Android app itself because I try it to use to my android device to serve as a server. I used a laptop to check if this bug exists and followed the step to reproduce. It seems it's working on my laptop. All the content is well displayed.