Refresh schedule does not enable and prompts success

[Nouneds]

Whenever i upload a new report to tenant, refresh a data it works fine but when i try to update refresh schedule it adds correct data but cannot enable it.
This is the json value that i'm using {'value': {'notifyOption':'NoNotification', 'days': ['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'],'times': ['11:00'],'localTimeZoneId': 'UTC', 'enabled': true }}

Return is successful but as i wrote, it does not enable the refresh.

Expected behavior
Refresh is scheduled and enabled.