I have 10 slides on my home page slider. In preview they transition in sequence (as planned). Images and text are supposed to pair. Once published they transition in random order. Driving me crazy!
You’ll need to share your designer readonly link in order for anyone to see your setup.
Aside from that, check any interactions you’re using.
And this isn’t related, but you have a strange thing happening with some of your element types on slides #5 and #9; 5 is identified as an <aside> and 9 is a <nav>. I don’t think that would cause your problems here though.