Horses Randomly Dying

There is a very weird bug in all of my minecraft or worlds! Whenever I mount or ride a horse, even if it is on full health it suddenly dies. I once found a rare horse and I had it for a little while. I rode it all the time and once I got on it when it was at full health (I had just fed it a bunch of golden apples and carrots so it was at full health) and suddenly as soon as I got on it, it died! Please fix this bug, it's ruining my horse stables and killing all my horses!