If you're on PC and the original workaround doesn't work, you can try downloading the world and editing the gamerules directly in the level.dat file instead using an NBT editor, then reupload the world on realms. I've had better luck doing this than using /gamerule
Homeless7075
If you're on PC and the original workaround doesn't work, you can try downloading the world and editing the gamerules directly in the level.dat file instead using an NBT editor, then reupload the world on realms. I've had better luck doing this than using /gamerule