Pitch Fader on Right Deck changing bpm automatically by itself

Legacy Products Controllers
1

I turn it on & load a track on,

next thing you know my bpm is readjusting itself nonstop even though I am not touching the pitch fader whatsoever.

please help

2

serato or stand-alone?

3

Both serato and standalone

4

I’ve had the pitch take off on me too. It happens when I lean on the pitch bend button to long. Can’t figure out why.