Sound doesn't Loop

I just noticed that Music in my latest project doesn’t loop. Here’s the script:

playSound(project.music,{loop:true, volume:0.2});

The volume parameter works, why doesn’t loop?
I checked the howler documentation and the parameter is still named loop.

I tested on both version 1.19.3 and 1.19.4 with OGG and MP3 files.
Using Firefox 88 on Linux.

Verified that it loops in the editor version 1.19 (desktop) but no version works if exported (on Firefox). Works fine on Chrome.

Edit: It’s a howler bug. on Firefox.

It happens sometimes to me in chrome, but only in the html version… if I’m running the app using the wick editor or from the zip file, then it works just fine.