The orientation system of the device began to give out frankly garbage telemetry that does not correspond to reality. At the same time, so far it performs its main function and keeps the antenna of the device pointed at the Ground (without this, communication with it will instantly stop). At the moment, it is unclear what is causing the problem and whether it can be fixed.
By the way, Voyager-1 is now located at a distance of 23.4 billion km from the Sun, in interstellar space, being the farthest man-made object from Earth. Its signal takes over 21.5 hours to reach our planet.
The probe was launched back in 1977.