minecraft bedrock issues with books, signs and more

I've been playing bedrock for awhile and I've been getting annoyed with signs and books not works. sometimes when i try and place a sign and type on in, the text disappears. Its the same for books. When ever i try and write a book, as soon as i hit sign and close, my progress is lost. It also doesn't ever save. It would be really nice if you could fix this. (also i play on a realm)1