I had perfect setup throughout all practice runs for both drivers, which was confirmed by their setup feedback. Just before the next race menu locked down, I was just going through the setup and strategy menus one last time. As soon as the 10 minute lock down period set in, the feedback of both drivers now showed:
Note that the setup was not changed in anyway.
Further, the qualifying time was 0.5 & 0.8s slower for both, compared to practice laps for the same tire in same weather conditions. However, this might just be a circumstantial change affecting all participants, since the gaps were largely same as in practice, and also, race pace didn't seem to be slow compared to others.
In any case, it's a display bug at the very least.
Not that it matters too much, but still...