I got this plant about 2 months ago and several weeks ago I noticed that these strange brown/ yellow patches forming on the underside of the leaves of the plant. Later these leaves would turn yellow and then droop. I eventually cut these leaves off, but now they are coming back. I recently sprayed the plant with neem oil just in case, but what is happening to the leaves and what can I do to stop it?
I water this plant when the top 2 inches are dry and it is located outside on a shaded porch. I also recently replanted it about a month ago.