A periodic object from 17.01 activated a task and the periodic object was ended by the daily change.
The started task in this case is in activation (in other cases, it may already be started). The task runs and ends normally.
The newly periodic planned object (after day change, i.e. on 18.01) starts no new tasks. Instead, it is necessary to manually click on the properties of the task in the activity window and confirm with OK, then the tasks are started.
In some cases around the Period-/Day-change, a periodically planned Object starts no new tasks. It doesn’t matter which C_PERIOD object, all can be affected.
Investigation
If you look at the screenshot below.
<Please see attached file for image>