Error happened on PC/Steam version (possibly elsewhere too)
In the five fights per round of the current class event (orbweaver), the fifth fight, which is supposed to be the Emperor Liang team, is replaced by a copy version of the third one (Queen Mab). This goes both for the fight selection (as seen on attached screenshot) and the fight itself.
The mistake persists over different rounds and game restarts. I assume a database error.