Hi all. Just found this community and was hoping someone could give me an assist with an issue on a Philly. These spots started appearing about 2 weeks ago and it’s got progressively worse quickly. I haven’t had the pleasure of dealing with pest yet in my plant journey so I may be missing them but I can’t see any pests anywhere on the plant after checking a million times 😁. It’s kept in a well draining pot in a mix of perlite, pumice, coco husk and bark, humidity is avg 60%, grow light on for 8 hours per day, watering is only when I feel the top few dry. Any help for treatment or troubleshooting ideas would be very much appreciated. Thanks. Vince.