Overwrite protection date

Good day,

I have an interesting issue with two of our backup jobs that run nightly during the week where the Overwrite protection date on the job log shows a date that has already passed. For example, last nights job ran on 5-15-13 and should show an overwrite protection date of 6-19-13 but instead shows a date of 5-14-13 which was the day prior. However, when I check the Overwrite Protected date on the media that was used it shows the correct date. The media set is used by numerous other jobs which all have the correct date in the job log. I have rebuilt the policy from scratch and the job still shows the incorrect date. I have attached an example.

Thanks,

Rick D