Sir, you are an absolute legend, a nerd and a real gentleman. I must rename the first track "Ladies and Delca" now !
I see 3 possibilities :
-1 : I used a very old "deprecated" 🦜version of FL studio, my DAW , even a 32 bit one, and I had to manually export 40 songs into .ogg, so maybe something went wrong here, or ...
-2 : Then I had to import the songs into the Construct 3 engine which then convert them into .webm for maximal compatibility and it goes wrong here, or...
-3 : During the export/compile/minify process...
Anyway, thank you ! I will work on that when my body and mind has completely recover from the jam. I suffer what I call the "post jam disgust " right now.