Roland JD-08 LFO slider issue.

This has happened from the first day I bought it mid December 2024. It's a complex machine so I noticed it but didn't pay too much attention until I started to really learn it.
In the LFO 1/2 the Rate Slider appears to be defective. If I move it from the mid point, say 50% to 0%, the values on the screen glitches with random numbers, when I use the palette slider it's fine. I think this is a problem with the JD-08