I have a nRF52840 dongle, I was using nRF52840-DK as a pass through debugger for it and it's been working well. I use the J-LINK RTT Viewer, and the RTT connects correctly.
Now I tried to use nRF5340-PDK to replace the nRF52840-DK as the debugger, but it cannot connect. I ran into "Failed to power up DAP" error.

Any suggestion?
Thank you!