The last photo shows what I would diagnose as erwinia on the older lower leaf. If that is infection, any of the affected surface can easily transit the infection to other parts of the plant as well as to other plants.
Look for articles from sue bottom, at STAUG for diagnosis and treatment. If...
hey Darlene never mind on my post above just realized that email searching isn't much more lazy than just asking you
looks like
CA766 Fall River x kovachii 'Peruvian Love'
from march of 2020... does that match yours?
ha welcome to the club... you may find the following resources useful..
https://staugorchidsociety.org/culturepests-diseases.htm - scroll down to the section on "Anthracnose - Colletotrichum and Glomerella" also
https://www.hark-orchideen.de/orchideen-krankheiten/ you can select the 'EN'...
funny thing is for me, i've started grabbing the rhizome with a wire and pulling that back into the pot (doesn't work for everything... but the longer the rhizome the easier) and using a tray or pot scheme that supports it... in plastic pots. i end up using galvanized wire to poke through...