Singer 236G131 Post Bed needle won’t pick up tread from Bobbin

[Rogueshoemaking]

My name is Plunkett 

Based outside Brisbane, Queensland, Australia.

I have a Singer 236G131 post bed 

used all my needles including the last one. I know big mistake unfortunately,

and ordered more, the previous needles where Schmitz, and the new needles are Groz-Beckert. For the love of me, I’ve spent the last two days trying to fix something that probably wasn’t broke, but I thought the timing wasn’t right, because I was sewing nearly medium leather last with it, and it was fairly soft Chrome Excel. But due to it not working, I adjusted the needle bar, then I adjusted the bobbin case to make it closer to the needle, by loosening two screws from underneath. Still can’t get this needle to pick up the tread from the boobin, using the servo. It will pick it up when I do it by hand, the first time, and it will continue for five or six stitches , then I press the foot peddle, and no luck, just punches holes. 
I don’t know anything about needles, and wouldn’t know where to cross reference if they are the same. But somethings not right, and it might be the needles. ( gut feeling : no evidence  ) I have attached pictures of the needles. Can anyone give me any advice, or help point me in any way. 

Edited 20 minutes ago by Rogueshoemaking