Lagniappe

Tribeone ,
That pic of the namwa looks dry . I am using a mix that looks like the mix you have and it is full of wood fines . Water runs right through it and very little is absorbed . As a result,I have let some of my plants get too dry and they looked just like your Namwa . If you lift the pot and it feels light as a feather then you may have the same problem .
With a mix like that it has worked best for me to run a sink of room temperature water and set the pot in it for a minute or two . If it's really dry it will float for a while and will need your attention to keep it upright.Then you can drain the sink and leave the plant in there untill the pot has completely drained .

My outdoor plants also get the big, brown, crunchy spots when they stay dry for too long . It shows up in the young plants first . I never neglect them long enough for it to show up in the larger plants. And the new growth of the plants looks normal as long as they're getting watered properly .