Book and quills don't save texts when you write in them and close it. this bug has been affecting realms since 1.17. Sometimes texts will save but when you write anything inside it it and you close  the book and then open it again the page will be blank. It's been a bug that's been effecting realms for easily a year plus. this bug does not seem to happen on single player worlds. This happens to anyone on the realm and it happens to every page in the book as well. If needed i'll try and get a video of it. But it only seems to be affecting realms. Is this a known bug. and if so will it be fixed by 1.20? it would be disappointing to get the new book shelfs in 1.20 only for it to not be used because book and quills don't work.