Hi! My golden lace cactus Josephine has these brown divots (not sure what to call them) where she used to be a nice vibrant green. I’ve googled and tried the diagnostic feature of the app but I haven’t been able to find anything concrete. I’m hesitant to change the care schedule because while this has been going on for a few months it doesn’t seem to be affecting the growth of the cactus. Any insight or thoughts would be appreciated! Josephine is kept in the windowsill of a south facing window and I water per the app which is probably about 1x/month. Soil is never wet when I water her of course. I used a little liquid fertilizer as well.