Microsoft has updated the following KB article:
Automatic Deployment Rule schedule properties change unexpectedly in System Center Configuration Manager
Symptoms:
After you manually run an Automatic Deployment Rule (ADR) in Microsoft System Center 2012 R2 Configuration Manager Service Pack 1 (SP1)or Microsoft System Center 2012 Configuration Manager Service Pack 2 (SP2), multiple schedule properties are changed. These changes affect future runs of the ADR. For example, the Software Available Time property may be configured as 12 hours and theDeadline property as 20 days. However, after the first run of the ADR, the Software Available Time property will be configured as 1 hour and the Deadline property as 2 days.
Full details:
https://support.microsoft.com/en-gb/kb/3091103
NOTE:
This KB was originally published with the following title:
“An incorrect Software Available Time value is created in the ADR in System Center 2012 R2 Configuration Manager SP1 and System Center 2012 Configuration Manager SP2“