Lottie Render not working – does not match HTML preview

Good day everyone. Strange issue PLEASE help. Simple animation in After Effects. All elements .ai files.
.json render gives me some form of blurred sky and starflash image. HTML preview shows the right animation (very low res). What am I doing wrong. This is VERY frustrating! Many thanks.

Can you share links, screen recordings, layer setup?

Thanks For your help.
Not sure how to get these to you, but here is my best shot.
I am a new user and can only add one image! So all together.

And here is a link to the file preview.

I would right click the Ai layers and convert them to shapes and then use the masks options with the layers to set an alpha matte or inverted alpha matte