I contacted Kindle Support about the missing-text bug.
The results went something like this:
Kindle Support: Did you try restarting your Kindle?
Me: Yes, it didn't help.
Kindle Support: Did you try resetting your Kindle?
Me: Yes, it didn't help.
Kindle Support: Okay, I will escalate this to our technical team.
Next day Kindle Support requests device logs.
I email requested device logs.
A few days later, I receive a follow-up email:
Our technical team has determined this is a hardware problem and it would be best to replace your Kindle.
I am dubious. What are the odds that getting a new Kindle will fix this problem?