NASA has announced that Voyager 1’s telemetry problem has been fixed. Engineers managed to restore its AACS orientation control system to normal operation, after which it began sending correct data to Earth. However, the cause of the failure itself remains a mystery.
see: https://universemagazine.com/en/nasa-has-resolved-the-problem-with-voyager-1s-incorrect-data/
However, Q_FFF Theory has the answer: One of the two former Herbig Haro Black Holes nearing the Voyager. ( see below) also responsible for the Oort/Kuiper belt system and the planetary disc.