Star Trek: 10 Things Picard Has Wisely Avoided (Or Forgotten)
4. Picard's Mum In TNG S1
Agree or disagree with the choice to show the tragic suicide of Yvette Picard in Hide and Seek without warning, the storyline featuring Jean-Luc's childhood was an engrossing part of the show's second season.
Yet there was one plot point that the show skated over which had fans filling up their character limit on Twitter. This was in relation to her appearance in TNG's Where No One Has Gone Before. Now, at that time it seemed we were being treated to a memory of Yvette Picard as her son last remembered her but 33 years later it's spin-off series chose to explore the past and opened up a line it may have chosen to forget.
Trekkies have suggested that this was more Jean-Luc envisioning something that could have been but it looks more probable that it was an oversight on the writers' part. After all this was one moment in one episode from the very mixed first season of TNG.
How the two stories do mix together and remain canon was therefore left without true explanation as at no point does JL ever make a note of the incident on the Enterprise although Trekkies are less forgiving and much less forgetful!