Reply to Traktor 2.6.4 timecode issue?

I had a quick go on my turntables earlier after putting a new pitch fader in one of them.Works spot on now :-) anyway after maybe 20 mins the decks started saying low time code check needles, check time code?Never had any problems in past 2 years using turntables and my time code vinyl until this latest update?Anyone else experienced anything similar on the latest update ?