does anyone else get in-game joystick jittering in DCS when using Periodic Effects? I have to turn

does anyone else get in-game joystick jittering in DCS when using Periodic Effects? I have to turn the effects down to nearly zero otherwise the in game joystick and subsequent control surfaces (ailerons and elevator) continuously jitter. For reference, I'm using a VKB grib with a small VKB extension (dont think that it matters in this case but I could be dead wrong) and flying the Spitfire.
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