Lottie animation problem only when used on my website

Hello,
Did someone know how to solve the following problem,

This is my lottie json:
https://kiryat-yam.muni.il/_logo/KY_horizontal.json

if you test it on lottie simulator it is working fine.

When I put it in my website, some of the graphics disappears:
https://kiryat-yam.muni.il/_logo/

Hello,
Guess it’s a bug caused by the way you use multiple track matte
Try to make a precomp of the missing elements (waves, land, sun …) before exporting

I agree with Thomas also, if you set this in a comp within a comp you would want to try and pull the waves out of that and keep it all in a “main comp” as much as possible.