Oven flame going out after replacing ignitor

Hi, our oven quit working completely so I replaced the ignitor, however, now it appears the flame is not staying lit fully. I replaced the ignitor with the exact part number also from Whirlpool.

Our oven is a Whirlpool Gold model, anyone have any suggestions on what to try?

Initially the flame does all light up, pictures are attached.

Thanks!

Attached Images