Thanks a lot Peakea.
I have been quite worried about this. You did very well to spot the problem with only a few tiny examples. I should have made a longer recording but anyway you have sussed it out.
I only tried Low Latency and Full Duplex tonight out of desperation!! I have always used the Steinberg Yamaha ASIO drivers for my CI2± interface. But I had some stupid problem causing software removed a couple of weeks ago (Tune Up Utilities) which altered many Steinberg settings. Perhaps this caused some unwanted changes?
Best,
Paul