Update on this one, new stable version 6.85.6300 still not fixing CPU temp sensor readings lock issue, currently the only work around is sleep (S3) and wake up right after start AIDA64.
Very much the same issue here, ROG X670 Hero (BIOS version 0805), AMD 7950X, running Sensorpanel on a dedicated small screen.
AIDA 64 Low-Level sensor operation got the whole MB temp reading locked, causing fan speed locked.