Closed caption disabled for guest users?

Closed caption button for guest users appear when I build docker-jitsi-meet from source but the same don’t work when I use the jitsi-meet repo and mount libs in jitsi-meet repo build to /usr/share/jitsi-meet/libs in web container (to allow customisation in react code). I can confirm that the interface_config.js in both the cases were same, and had “closedcaptions” in TOOLBAR_BUTTONS.

Looking further into the issue, I found the patch was merged on May 29th here:

I am not sure if the latest pulled image for jitsi-meet has the same functionality in place, or I am using the old build ?

I don’t seem to find any explanation for this behaviour where building from source shows me closed captions icon and everything works fine but when mounting libs folder of jitsi-meet to /usr/share/jitsi-meet/libs for the web service, it doesn’t work.