Creating application from a sample

I am using nRF Connect from inside of CodeVS IDE.

I  am creating a new application by Copying a Sample.

I have successfully built and flashed "Peripheral_Uart" example

The DK flashes LED1, Lights LED2 when it is connected to a iOS app

But I am unable to send UART (text) data.

This is the log from NRF toolbox

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