Lost 3rd party DBO rights after Update

Hi,

I'm running SharePoint 2013 Server with December 2014 CU. I'm using a 3rd Party Software called DocAve on this farm. This 3rd party service account needs DBO rights on all SharePoint DB to work.

Now everytime I install a new Cumulative Update on my SharePoint 2013 farm, the DBO rights for the 3rd party service account seems to get removed everytime. I'm using this 3rd party on my SharePoint 2007 farm and I don't get this behavior.

Anyone having the same issues with 3rd party that needs DBO rights on SharePoint 2013?

thank you