Are there any known issues in using KAV 18.104.22.1681 and Office 2013, particularly Outlook?
I have noticed a couple of posts in the past, but are issues resolved and everything stable now?
Yes there is.
KAV 6.0x is not compatible with 2010 or 2013 versions of outlook. I suggest disabling all outlook plugin functionality within your respective KAV profiles.
Mail and spam is what you need to disable