The helicopter was already out of sight and at a distance of ~1km, as seen in the map below. There is an obstructing mound about midway that rises 13m above the line-of-sight, which might be the reason for the loss of signal. Despite that, assuming Ingenuity's landing software worked as usual, the helicopter may be in good health, but
The fact that there is just one image from #Flight71 attests to the fact that communication with the rover was already bad before the flight, and probably remained bad after popup #Flight72 which landed at about the same location.
@reconbot I was reading space.com's article and they said this:
"Perseverance is currently out of line-of-sight with Ingenuity, but the team could consider driving closer for a visual inspection," NASA's Jet Propulsion Laboratory in Southern California, which manages both robots' missions, said via X on Friday.