[Elecraft] [K3] Intermittent encoder?

[Randy Moore]

I just installed a KAT3 in K3 #2627 (a friend's).  Last night while 
playing with it, I noticed a few times that the VFO A frequency would 
get "stuck" and the last digit of the display would flicker when I moved 
the VFO A knob.  If I spun the knob, it would start to behave properly, 
then later it would "stick" again.  This morning I can't reproduce it.  
Has anyone else seen this?  It seems like an intermittent encoder problem.

73,
Randy, KS4L