When choosing a preset in translation settings that includes context, that context does not initially apply to the translation. The contents must be modified, or be deleted and then reapplied, for the context to take effect.
Write any instructions to the context and save as a preset -- in the video, I am using my interlinear glossing preset that explicitly instructs the translator to format the output in four lines. On a new session, call the preset with the context, then paste in your text to be translated. The translator will ignore the context despite appearing in settings, and you must change its contents to actually apply the instructions.
Context in saved presets should automatically apply upon selecting the preset and translating text. This was the case until about several days ago after a new update presumably caused this regression.