FujiFilm GFX 100II Owner's Manual page 240

Time code synchronization state
You can check the time code synchronization
state by the icons displayed on the EVF or LCD.
Icon Icon
(white)
(white)
(amber)
6
(red)
212
TIME CODE SETTING (Movie Recording)
Synchronization state Synchronization state
The time code synchronization function is not
being used.
Time codes are being synchronized.
External devices have been disconnected or time
codes are not being synchronized. If time codes
have been synchronized once, and the camera
continues to count internally after CONNECT TO
ATOMOS AirGlu BT was set to ON, a value is
displayed.
Time codes are not being synchronized because
the frame rate settings are diff erent. If time codes
have been synchronized once, and the camera
continues to count internally after CONNECT TO
ATOMOS AirGlu BT was set to ON, a value is
displayed.