For the last couple of days I've noticed things disappearing out of my Combat Tracker such as lines out of the Defense slots or weapon skills.
Attachment 34754
The screenshot shows the CT from both the GM and the Players point of view, which the player is simply another session running on local host. But in this example Onna's Parry and Normal Shield lines have disappeared from the GM's CT. I've also had weapon skills disappear. It doesn't appear to be a delay of any kind because I've left the CT open for as long as an hour or so and it never repopulates. The only way I've been able to get those items to reappear was to delete everyone out of CT and add them back in or shut down the entire session and restart FGU.