Rockstar Games just recently tried to repair some Red Dead Online bugs it accidentally presented in Julys major upgrade, which added a biologist function to the game. It mistakenly made things much, much worse on PS4 and Xbox One. There were problems galore, and as funny as much of them were, the bugs made the video game unplayable for numerous individuals.
Horses in some cases glitched out, and were just able to run in place. The developer is attempting to untangle that mess by rolling back the most current patch and reverting the video game to a previous state.