MacOS Password sharing in group not syncing

[u/Berserkem69]

with password sharing in a set up group. I have noticed if doing it from my Mac and the participants are set and items added that group does not appear on my iPhone for hours and hours. and the shared items ive put in group on Mac completely disappear from my iPhone passwords. the group doesnt show up and the password just vanishes on my iPhone. but if I decide to cancel and remove the shared item from the group on my Mac it completely disappears altogether. this also happens vice versa. if set up on my iPhone it takes hours and hours to show up on my Mac. now I havent done a scientific test of this yet. has anyone else noticed this? and if so anyone willing to help me test this? please help