Hello,
I have a firmware working perfect with nRF52832 DK and nRF52840 DK, using SES 5.40a.
Now I just upgraded SES to version 5.70a. With new SES version, each time I flash my DK board I should turn it OFF and ON to get the firmware start running. Even the RESET button does not work.
I see that SES 5.40a uses JLink_x64.dll version 6.94d, and SES 5.70a uses JLink_x64.dll version 7.60c.
I just tried to overwrite JLink_x64.dll from old SES (5.40a) to new SES (5.70a) and EVERYTHING STARTS TO WORK PROPERLY.
Even when it solves my SES upgrade problem, it seems to me to be an artifact that should be fixed some other way.