Only one head on torch is extending?

[Magicalmidnight]

Hi. I have a double head torch and only one of the heads wants to extend and thrive. The other head still has nice color, but wont extend. They are

Does anyone know why?

 

[UCF Alum]

Is there something on the right side of the torch that might be rubbing up against it? It might be irritating it

 

[Magicalmidnight]

Is there something on the right side of the torch that might be rubbing up against it? It might be irritating it

Nope. Nothing.

 

[Hermie]

Have you tried a different spot for different flow?