Before attempting to fix a quest, you must enable the console in the game's configuration files:
Navigate to your game's installation folder (e.g., Steam\steamapps\common\The Witcher 3 Wild Hunt\bin\config\base ). Open the general.ini file using a text editor like Notepad.
Is there a console command to finish a bugged quest? | Forums
The original method for quest debugging remains active in the next-gen update (v4.04), though it requires manually identifying quest-specific IDs. Enabling the Debug Console
Launch the game and press the (tilde) or F2 key to open the console. How to Force Quest Completion
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