Every time I do a manual landing, my GS indicator starts the amber flashing, which shouldn't happen when you're not deviating from it. See attached picture.

FM:
"ILS localizer and glideslope deviations are monitored when below 500 feet RA
with the mode control panel APP switch selected ON. An alert is displayed if a
significant deviation from localizer or glideslope occurs: the respective deviation
scale changes color from white to amber and the associated pointer flashes.
The alert stops when deviation returns to within normal limits. The glideslope
alert is inhibited when below 100 feet RA. During a localizer alert, the stem of
the rising runway symbol also flashes."

---