(spoilers)
So it looks like the Cutie Mark Crusaders finally have a rather good reputation all over town, and they've apparently been doing very good at their special talent of helping other ponies understanding their special talents.
Then along comes a young griffin name Gabby (thus continuing the tradition that all griffin names start with G) who has a much more positive attitude than most griffins. In fact, it was the visit by Rainbow Dash and Pinkie Pie back in the previous season that inspired Gabby with the hope that she could have a cutie mark and discover her true purpose.
As I suspected, the CMCs ask Twilight and she confirms that there has never been a single case of a griffin getting a cutie mark. But of course, that doesn't stop them from trying, and they decide to reuse their old habit of trying everything possible. Remarkably, Gabby turns out to be good at literally everything on the list, but no cutie mark comes of it.
After the apparently failure, Gabby tries to fake having a cutie mark (I totally knew it was fake from the start). But after that's exposed, they soon realize that Gabby's special talent is helping others, and is even made a member of the Cutie Mark Crusaders.
(end spoilers)
I recently heard that the reason this episode was delayed was so there could be a CMC episode in the second half of the season. Kinda odd, but at least I understand it.
By the way, I recall there was a member here who is from Poland, but he hasn't been active in years. Besides, I doubt he would even be interested in this show, anyway.