Tracking error or ??

I was listening to my Lyra Kleos last night and on one of the most dynamic records that i own ( and best sounding) an Analogue Production Sonny Rollins Way out West LP; I noticed on the second side, which is very dynamic and has some serious high frequency extension, that there seemed to be a little distortion (or over loading) that i suspect is coming from the cartridge. The Kleos is tracking at the recommended 1.8 grams and my arm is usually pretty immune to miss-tracking ( as it uses a liquid bearing). Anyone else experience the same kind of thing with the Lyra's? I wonder if a higher tracking weight might be the answer, even though Lyra recommends an exact 1.8 grams??