Hi Kooldude93, this extra information helped me!
I am able to to reproduce some weird behaviour when creating a new tab and closing the app just after. I've had a tab or two disappear, and the "tabs" button showing the wrong tab count, but I haven't seen tabs being re-ordered.
However I feel like this could be the same underlying issue.
I'll investigate.
Thank you for your help in making Orion a better browser!