After starting Minecraft Bedrock Edition with an Xbox One controller and keyboard connected I can only write on one sign. After that I can no longer write on signs. If I start the game with only the keyboard connected then I can write on the signs as many times as I want. After the Minecraft update 1.20.30 update this issue arose. The bug persists in world that  have experimental settings on or off. It is very annoying because you can only write on signs when only the keyboard is connected. If you want to play with a controller and keyboard you can only write on the sign once. Then after that you cannot write.