Outdoor Organic Durban Poison

So in three of my pictures I show leafs growing directly from the main stem. They are discoloured and have dark and brittle spots on them. I haven't seen that in any plants from the past jet and the rest of the leafs look fine. Does anyone have an ideal what that means? Thanks! �

So this last week a few lower branches developed white spots that seem to cause deformation. Is this some kind of mold and do I need to do something about it? I’m worried it will stress if I let it be. Thanks in advance!