Right Thumbstick not working after charging port replacement

Thank you for your time in reading my post. Hopefully, someone can help.

We have a Nintendo Switch Lite, the charging port was visually damaged. I’ve replaced the charging port, everything works other than the right thumbstick clicks but there’s no other movement.

I’ve tried to replace the thumbstick, but still the same. When I try to calibrate it’s permanently pointing down and right. It does this regardless of the original thumbstick or replacement.

I’ve got a short to GND on PIN 1 of the thumbstick connector that doesn’t seem present on another Switch Lite console.

Can’t find what else is on this PIN 1 circuit if anyone can please help?

Everything else, is working as expected.

Any help or suggestions please?