Hello,
Chiming in that I can replicate this bug as well. Can read books fine when it does not load a custom font, but crashes when it does. Please fix?
I appreciate the feedback. I have each version in a different folder, however. When on version 1.12, I could go back to older versions of Minecraft just fine, but now that I have 1.14.2, older versions crash.
This has happened on PC version too in 1.12.
Update: i and another horse pushed them around and they didn't care. lol
I also named them. I've grown quite fond of them!