I have been able to replicate this on two servers, and had another admin also say they see the same problem.
Rust game bug, i removed all plugins to test.

When you buy a saddle and then buy a horse from "ranch" the saddle mounts, and you can get on horse, but it will not move, and you cannot lead it either. switching to double saddle does not change it either.

However buying a horse from the large barn works fine. I am having to edit my map to replace ranch, just wanted to see if others are also having this happen this month.

posted from umod discord, in case this helps. i have not tried it as i edited my map and replaced the ranches with the big barns to get around this

using System;
using Oxide.Core;

namespace Oxide.Plugins
{
    [Info("Fix Horses", "Substrata", "1.0.0")]
    [Description("Fix immovable horses")]

    class FixHorses : RustPlugin
    {
        void OnServerInitialized()
        {
            foreach (var ent in BaseNetworkable.serverEntities)
            {
                if (ent is RidableHorse horse)
                {
                    horse.obstacleDetectionRadius = 0.25f;
                }
            }
        }

        void OnEntitySpawned(RidableHorse horse)
        {
            horse.obstacleDetectionRadius = 0.25f;
        }
    }
}​

Isn't .25 default for that already? are we supposed to change it maybe? And then can't people just glitch into bases again?

Facepunch's fix is on release branch right now right? Is that working, did they fix it?

There was a rumor they were going to hotfix it yesterday but fix must not of worked cause they did not do it.