Sony ILCE-9 Instruction Manual page 122

Note
• The message [Custom WB Error] indicates that the value is in the unexpected
range, for example when the subject is too vivid. You can register the setting
at this point, but it is recommended that you set the white balance again.
When an error value is set, the indicator
information display. The indicator will be displayed in white when the set
value is in the expected range.
• If you use a flash when capturing a shot, the custom white balance will be
registered with the flash light. Shoot images with a flash when recalling a
setting registered with the flash.
GB
122
turns orange on the recording