STI Trouble

[chicagorider]

Hi all,

I lack the vocabulary to describe this problem well... I'm having an issue where if I try and shift up the rear cassette (on a DA9100 shifter), then the metal lever that is actuated by the shifter would get stuck... I've made a video of it (please excuse the background noise).

https://photos.app.goo.gl/mm9ntT1MPhEwY7bo7

Before I start taking it apart etc. wondered if someone knows what's going on. I've had similar problems before when the hoods were not on properly but I don't think that's the issue here.

Thanks PL!