My cousin sent me a pic of her plant with light yellow spots on its leaves. I’ve told her some things to check. Curious what anyone else thinks. I don’t meant the one leaf that’s turned a little yellow (although that might be an indicator lol) but the 2 leaves in the front that have spots on them. She said the hygrometer showed about between dry and moist when she watered it a couple days ago. She’s checked the drain hole and can’t see any roots. Next she’s gonna check underside of leaves and top of soil. I’ve sent her some pics of what to look for but I’m still fairly new to plants so looking for extra help please :)