After the release of the update with the uprising of the mechanisms there was a problem. In the heroic adventure mode of Dalaran is displayed is not the correct statistics. In all four chapters, all the top characters have a crown. In the 3rd Chapter, I won all available characters and still displays 3 crown only. Even after that, I went on an adventure on the druid and the crown did not appear.
Tablet : Apple Air
This is a visual issue. Progress is still correctly saved on server.
The Hero progress has been reported and is a Known Issue:
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