When looking at lb.to, then jnj, I noticed on the charts that certain years (not all) are missing Feb, and the Close value for Jan is actually the Feb close price. for Lb.to, I checked only a few years but 2001, 2006, 2017, 2018 are missing Feb - but say 2012 has Feb.

Note the data download from the chart (down arrow, save as...) INCLUDES the missing months. 

I discovered this when noticed a March 2018 BUY annotation for LB.to does not display - if change the month to Jan or Feb or April displays OK. Note when change to Feb, the annotation displays, but the month data is still not displayed