New phalaenopsis rescue with sticky stuff, patches, black leaf tip

[Mercurianmad]

Hi guys. I’ve got a new phal rescue from the Bay Area. It was left in the same compacted spahgnum moss for 3 years. Root bound when I got it. I reported it in fresh media. Now we are in a much drier place than the Bay Area. I have a humidifier and fan on my orchids but this one has some weird problems.

Sticky sap leaking from the leaves. No obvious scale I can see so I figured it was using the sap to equalize pressure in it’s leaves.

White patches. Scars maybe?

Black patches? It was in the same pot and media for years and it was acidic. There was some root rot when I got it.

Black leaf tips.

I’ll attach pictures. Let me know what all this stuff is please. Thank you.