Mis-identification of FF in the run 20

While looking into the data showing terrible flux loss in the run 20 (PIPE2D-1580), I noticed that FF was mis identified during the convergence.

[fluxloss_20250215.pdf (see pages 17–19)

Mis-identified FF affected calculation of distortion, which probably made the cobras position wrong. At that time, FF was fainter than before, but the mis-identification occurred at later iteration, when MCS exposure time was longer (4.8s).