Hi Ralf
As per this post (community.kaseya.com/.../17112.aspx) the Symantec add-on is not compatible yet with v6.3.
Your Time Tracking / Service Billing ticket has been escalated to our Development team; I have reached out to their manager to make sure it is reviewed as soon as possible. Please stay tuned to the ticket for updates. I will also be monitoring it myself.
Thank you for your patience
Amado Hidalgo, Kaseya Support Manager