where do you imagine methanol being produced during solvent evaporation?
when yeast makes ethanol by fermentation, there are certainly all kinds of other things produced, but you’re not fermenting, you’re simply pulling the solvent and other volatiles off your cannabis resin.
did you use beverage grade ethanol? then you should have beverage grade ethanol plus cannabis terpenes.
if it smells good, taste it 
there shouldn’t be much in the way of cannabinoids…