Cannot change language to Vietnamese in Sumuc version

@vuthehuyht
I also use the Sumac version. Here’s what I did to get translations working:

  1. You need to enable darkLang.

  2. Add the Language Selector in Site Configuration.

  3. If you are using your own fork, you need to specify it with the command:

tutor config save --set ATLAS_REPOSITORY="your_username/openedx-translations" --set ATLAS_REVISION="branch"
  1. Then rebuild the images:
tutor images build openedx  
tutor images build mfe --no-cache  
tutor local start -d

translations don’t apply to MFE without --no-cache — I’m not sure why, but you can ask about this on the forum
After all these steps, translations will apply 100% of the time.
If this doesn’t help, it’s likely that there is an issue in your Open edX installation, and deeper investigation is needed.
Hope this helps!