Unable to pull manual shots from Breville Bambino

I'm trying to pull manual shots from my Breville Bambino, and it simply isn't working. I'm following the steps in the manual. (Press and hold the double-shot button for pre-infusion, then release it for the extraction to start, and then press again to stop.) The issue is, the machine stops midway, before I press the button. Seems like it's doing the pre-programmed double shot volume, and stopping after that. Does anyone has experience pulling manual shots from this machine? Should I contact Breville for a repair?

Edit: It fixed itself after performing a factory reset.