Audio not playing on any videos in MacOS 14.5 with KhanAcademy ZIM on Kiwix 3.3.0, the weblink doesn't work either in Safari but works in Firefox?

[coopfidgets]

I'm not sure what the issue is (it could be the ZIM file) but I am using Kiwix 3.3.0 on MacOS 14.5 and I downloaded the khan academy zim file here (khanacademy_en_all_2023-03.zim) https://download.kiwix.org/zim/other/https://download.kiwix.org/zim/other/

I also tried to play a random video using the library.kiwix.org link: https://library.kiwix.org/viewer#khanacademy_en_all_2023-03/d824e26284a65d46b7fe1cf8330122b9

I cannot get the audio to work - Is this Kiwix issue or is it a ZIM file issue?

If I run the link using Firefox then it works fine - is this something to do with the built-in browser for Kiwix? Why does the library.kiwix.org link work fine in Firefox but not in Safari (17.5)?

Is the built-in browser for Kiwix webkit based? Can this be changed?