When I edit a post, and return to the updated page when saving the edit, the upvote indicator to show that I had previously upvoted the post is lost.
This seems to be related to the recent and unfortunate button redesign.
I speculate that returning to the page after editing reloads and rerenders only some of the page's elements, and that there is a bug in this logic (but I could merely be demonstrating my lack of understanding of web design here).
Also, tangentially, I believe I have occasionally managed to turn the button into "highlighted" when I tried to vote. This should be a transient state which disappears when the cursor is not over the button (and ideally, of course, it should be visually distinct enough that it cannot be confused with an upvoted state) but it happened to me on a mobile device a few minutes ago. This seems similar and possibly related to Vote button remains highlighted after retracting the vote
I am using Firefox on iOS 16.5, iPhone 12 Mini.