This isn't a bug. Servers and realms cap render distance in order to reduce load on the server. This is unaffected by what you set your own render distance to.
What do you guys expect Mojang to do exactly? Integer overflow is gonna happen no matter what if you input a high enough number.
This isn't a bug. Servers and realms cap render distance in order to reduce load on the server. This is unaffected by what you set your own render distance to.