Gas Dryer Intermittent Heat

GAs Dryer starts normally but flame doesn’t come back after cycling. Igniter does glow but no joy.

Original post wouldn’t go so…All the limits tested properly, the igniter as well and it works, but after one flame cycle it won’t reignite (igniter glows)even the coils on the valve test properly but can they get hinky when warmed up? I’m at a loss.