Hi,
Im using the nRF52840 DK and im trying to set the Service and characteristics with this tutorial : https://github.com/NordicPlayground/nRF5x-custom-ble-service-tutorial
Im using SDK 15.0.0.
I can build my project without any error, but when i try to use nRF connect to see my characteristics, nothing is happening, even the generic attributes are not visible.
When i try to debug my project, the program is running fine, until this error shows up after like 10 - 20sec

Thx for your help,
Tibi