Hey everyone, My polka is always having these brown bumps and I’m not sure what they are. I can easily scrape them off but they always reappear. When I do scrape them off they’re soft. Of note, there are a couple ants crawling around but I don’t notice any other pests on the leaves. I’ve used neem oil and a Castile soap mixture but they still come back. The plant seems otherwise healthy except I noticed some of the new growth leaves are all green with minimal pink dots. Any ideas?