anyone know what these markings might be? they can’t be wiped off. can’t tell if it’s cosmetic damage or pest related. I thought it might be pest poop?? or maybe sunburn? (I moved the grow light closer in the pic for better viewing but it’s normally 6in away) the two leaves that are affected don’t touch whatsoever. it gets a regular watering once the soil is mostly dry. none of the other leaves have brown spots/tips, just these two and a couple older ones from cosmetic damage.