What you were expecting to happen, and what actually happened:
I see that I have reached the maximum improvement and can no longer raise any troop to level 20 in the Karakot kingdom. But at the same time, in the collection, I see that a unit from this kingdom is level 18 and can be upgraded to level 20.
Steps to make it happen again
Open the kingdom menu, open the collection.
How often does this happen? When did it begin happening?
This has never happened before. I noticed the problem on Friday, when I opened a lot of chests and I had enough copies of this troop to improve.
Presumably you need to raise two, but only have one that can be raised. So, it shows as not being enough to upgrade, even though you have half of what you need.
Thank you, Zuul. I double‑checked myself, mentally reconstructing the sequence of completing the chain of tasks, and realized that the previous task was related to unlocking traits, not to leveling up. So yes, the troop in the screenshot is the 49th troop. The error report turned out to be a false alarm.
But now I don’t understand why Jeto’s task mentions 52 troops. I currently have 49 troops in this kingdom, and there are no missing ones. And the task with 50 troops seems correct.