Non-offensive Text Replaced with Hashmarks in Books

While playing on a Realms server I host, on a world I created and uploaded, I have ongoing stories - logs - in books and quills. This does not happen to my signed and copied books, only to the editable book and quill.

In these logs I may use numbered lists, I may write out coordinates, I may enter the names of mobs - villagers - I have labeled. I write, I close the book and quill, when I open it again, the text has been replaced with pound signs - hash marks - censored?

The text or numbers I am writing are innocuous. I cannot see a reason for this. I will try to include some screen shots of some of these pages working fine on my world's, but hashed on my Realm.

In some cases, I am able to enter the coordinates differently to keep them from getting “censored.” In two cases, not only was I unable to keep the coordinates from getting hashed, but words - “THREE” in one case, and “to” in another - were hashed on subsequent attempts.

This is one string that seem to be giving me trouble: “@ 2939, 74, 4009.” I try formatting it differently - no “@” and/or no spaces, or dashes instead of commas - still get hash marks after closing and re-opening.

When I create a new book and quill, and start fresh with this string it gets replaced with hash marks. HOWEVER, I tried some experiments. One time I deleted the hashes out of the fresh book and entered “@ 2, 4, 6” - close and re-open, no hash marks.

So I edited the text back to “@ 2939, 64, 4009” and this time it did NOT get replaced. So I went back to my log and tried it, but it was still getting replace. So I went back to my fresh book and quill, the string is there just fine. I type a return/next line, close and re-open, HASHES AGAIN.

So weird, hard to recreate, could be something corrupted in my world save, but weird I can get it to appear for a short while in a new book and quil.