I observed that the asset tracker application will not run using code starting with commit a507a3e42229544b195e93a9896ca09c8a4fba85 and newer, on the master branch, in repository https://github.com/nrfconnect/sdk-nrf. That change was an update to the west.yml manifest that calls for a newer revision of nrfxlib. I updated my modem firmware to version 1.2.1 (from 1.2.0) but that did not help. I figured that I'd open this ticket and make certain you are aware of the issue, and at the same time I am asking you if there is a scheduled fix. Thank you very much.