Realm crashes trying to dye a dogs collar or sheep

The realm crashes while trying to dye a dogs collar or a sheep with specific colors. Lapis (blue, white, yellow, ) doesn't make it crash but red, grey, light grey etc. crashes the whole realm. Its really a weird bug. Plus the realm crashes quite frequent sometimes every 5 to 10 minutes and horses with saddles despawn if riding while crashed. Or any work you have done 5 minutes before the crash is gone. Please fix this.
Thank you,
Shannon