Webflow animation glitches on first click, but is fine onwards

Hi all! I created a full-screen menu animation when “Industries” is clicked. In preview and the published site, the first click is abrupt, and doesn’t fade in like it’s supposed to. But any other click after that, it does smoothly fade in / out. Any ideas as to why this may be happening?

Here is my public share link: [[LINK]1]
([how to access public share link][2])