Same issue on my realms server in windows 10 edition. I received a notification that I had been temporarily muted right before this error occurred. I had not typed anything remotely offensive, but I did include hashtags (#) on my signs (as in "clue #3" - I was setting up a scavenger hunt for a friend). Please let me know how to resolve this issue! thank you.
Same issue - all signs are blank and anything renamed is all hashtags. I received a message stating that I had been temporarily muted, but I hadn't typed anything remotely offensive. I had made some signs with hashtags on them to denote numbers (as in #1, #2, #3, etc.) right before this all happened. Please let me know how to resolve this issue. Thank you!