Other players can't see my chat or sign text. What's going on?

When this happens, it’s one of two things:

1. You may be accidentally muted in the Lifeboat server. Use the /unmute command in-game to make sure you are actually unmuted.
2. With a Bedrock Edition update, Microsoft added what is called a “ghost mute” as a way to silently mute players who are acting suspiciously. You may have been accidentally muted by this system, and will no longer be able to send viewable messages or use signs. This mute is only temporary. If you need additional support, please go to the Minecraft support page.