We've had quite a bit of rain lately and very humid conditions. I checked a couple of my Hoyas I have under my Japanese Maple tree (I really prefer growing indoors but thought I may get a lot more growth on some of these outdoors).

I treat pretty regularly so I don't know what's causing some of these dark spots and the chlorotic look to these. The roots seem fine but some of these also have some leaves that are looking a little dehydrated. Any thoughts? Thanks.