The world is based in a friend's Realm, so there are no mods globally attached to it just a disclaimer. When entering text onto a sign, especially if the text has a number in it, the text suddenly vanishes. I'm actually making a neighborhood in this world with fake addresses and mailboxes, so I'm thinking that this may be some sort of security measure to counter doxing and so forth.

What I expected to happen was...:
The text to not disappear.

What actually happened was...:
The text disappears.

Steps to Reproduce:
1. Place a sign anywhere.
2. You may enter something as random to the effect of "10 Smiling Friends Way" or what I entered "10 Cypress Rd."