RF testing uart pin configuration issue

Hi,

I am working on RF testing on the custom board.

I have configured the nrf UART TX in p1.04 and UART RX pin in p0.13.

UART TX pin is working fine, but the UART Rx is not working.

I tried on the NRF5340 DK, but it is not working on the DK either.

I need to use the p0.13 pin in my custom board.

In this project,

QSPI_IO0 is also using p0.13.So I commented the configuration of QSPI, which also didn't work.
What is the solution to configure the UART RX pin as p0.13?
Thank you.
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