Hi, Ive been getting this issue with the last few versions of the NRF connect and programmer.
When the unit is programmed and working I tried reading the memory:
-with 2 different J-Links the memory layout looks broken (compared to the files loaded on the right side)

--Through USB SDFU it looks correct as per the files loaded on the right side

Nrf connect 3.7.1, Prog 1.4.11, Win10, Custom PCB