This is a great post for analytical chemists - very informative video.
We have dealt with our fair share of these mystery peaks on our LC chromatograms in distillate samples. I am reaching out to our standards provider (cerilliant) to see if they will add D10/D10aTHC to their radar for future development to help with more accurate quantification.
I think our friends at Infinite Chemical Analysis have isolated the mystery peaks in that region and sent them in for NMR analysis/identification. I believe they are also working on publishing a paper on the topic.