inv stuck

if i play on my 10 / 2 man realms if a items or block go in my inv is stuck it do not go to me 

hotbar if i click on it on al platforms is it nearly and sadly more versions have this i know of 

like if i rejoin the realm is it fine so idk and i dont ever know how it start it that but like i join a fresh new realm world and some time it happent that idk i also dont have a video so pls fix this