Platform, device version and operating system:
Lenovo Tablet, Android 8.1.1
Screenshot or image:
What you were expecting to happen, and what actually happened:
The original troop (and a narrator in some quests) was named Alastair. But in the campaign text it was referred as Alistair twice.
How often does this happen? When did it begin happening?
It began with completing the Chapter 8.
Steps to make it happen again
Just look close at the campaign text.