segmented reports are processed in real time (default)that is selected and applied,
core:archivewithout any special parameter
I encounter the exact same problem, but even if the segments are set to
SEGMENTED REPORTS ARE PRE-PROCESSED (FASTER, REQUIRES CRON) and the cron jobs were running without any problems every hour for several weeks now. The only solution to me is to uncomment
browser_archiving_disabled_enforce=1, but then of course the user has to wait several minutes until the reports are updated. The problem exists in Piwik 3.0.1.