When editing a book and quill that is not signed, if you do not select the text properly and try to press Delete, you will crash. I've tested it 3 times and that is 100% the issue. Edit, I have tested the issue further and when reopening a book and clicking on the last character (at the end) trying to backspace then will cause a crash. If it is not the end character it will no delete the correct characters also. When i was deleting instead of deleting a character sometimes a random letter would pop up.
Thank you for your report!
We're actually already tracking this issue in MC-149792, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
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