Login as host to DNN Platform v. 09.01.01 (129).
From Persona Bar, go to Scheduler.
Check the history of some task.
Some history records have the same NextStart date, ajax call to the Api /API/PersonaBar/TaskScheduler/GetScheduleItemHistory?scheduleId=<ID>&pageIndex=0&pageSize=50 returns wrong NextStart. See attached screenshots.
NextStart dates should be different.
I suppose the issue in Dnn.Platform\DNN Platform\Library\Services\Scheduling\ScheduleItem.cs