SVG to Lottie Converter

Hello everyone,

This is my first post here. I was wondering if someone could help me.

I created a simple SVG in Illustrator and dragged it into the Lottie converter.
Unfortunately, my SVG did not show in the window area. It remained blank
I wanted to apply one of the animated presets to it to test it. I selected them all one-by-one, but nothing happened.

The file was saved as a .SVG file in Illustrator (2021) and not a Ai file, so it should have worked.

Can anyone give any advice on this?

Thanks in advance,
Jay