Gamerules dont work after server restart

[Saxostevesaxo]

Hi Im using 1.21.11 and for the last few versions, gamerules work initially when set but the when server restarts they no longer function until you do the command again.

so do /mw gamerule advance_time false - works
restart server
daylight cycle continues
then do /mw gamerule advance_time false - works again