I made the unfortunate decision to reply in chat right at the start of a trail ride, so even though I hadn't finished the ride, when the page reloaded it was back to the horse select screen, and the horse I'd selected was missing as if I'd completed a ride for that day. Any way to make chat not affect explore? Or maybe auto-hide chat on pages where a refresh would mess it up?

Did you mean to post this in suggestions?

I had the same problem when I clicked the refresh button in the chat box. I started an explore session on a horse and when i clicked refresh on the chat box it took me back to the explore main page and the horse i was riding was gone from the drop down. Is this supposed to happen?

That's the way it's always been, as far as I know. Though it would be nice if this could be changed.

It's been this way since explore was added. If anything I'd add this to suggestions, as it isn't a bug.