Not sure what is going on. Those leaves are certainly dehydrated which begs the question whether there are any viable roots.

The mix you are using appears like very large bark.

You need to provide more information.

What part of the world are you growing this plant?

My guess is the roots are affected. Whether over watered or under watered I can't tell.

Jane

Plant is dehydrated, something to do with culture which depends on where you are in the world even if indoors.

Minor problem with name tag, clerical error + name changes to the orchid register kept in the United Kingdom

Modern version of label.

Rlc. Kat E-Sun 'Lakeview' x C. cernua

Rlc. Kat E-Sun 'Lakeview' pics available on net, crossing done with the hope , I suppose of reducing the size of the plant and retaining the charm of Rlc. Kat E-Sun 'Lakeview'

I'm in NJ, and the plant receives bright indirect light for most of the day (indoors, southwest facing window). My living room is fairly warm during the day (upper 70s ) and not particularly humid. The plant is in chunky bark mix. Should I take it out of the pot to check the roots? I was nervous to disturb it..

And the label came with the plant, I purchased it here in the US so maybe that accounts for the slight difference?

Leaving culture to the indoor orchid growing specialists, found this link with information about one parent (cattleya cernua)

Cattleya cernua info

Only looked up the name to see if the crossing has been registered. The label was fine, only had an extra - all other differences due to a massive change in orchid naming in recent times.

Anyway, never tried to grow a "Cattleya" indoors, some need a bit of day/night and seasonal temp. differences

It wouldn’t hurt to take a look at the roots, if you see green root tips be careful not to break them they are brittle. The plant does look dehydrated , when you water it should be really soaked so that the bark absorbs some water. If you just sprinkle some water on top you will have areas in the pot that are completely dry. If the bark is totally dry it repels water, so you want the media to hold some water that is slowly released between watering.

Cattleya types are also sensitive to calcium and magnesium deficiencies, which does cause leaf spotting.

If possible putting them outside during summer will give them a boost. A few rain storms flushes out the pot, just be careful about bright light, they will need time to adjust.

If you are in NJ, put the plant outside in a shady spot. Gradually move to higher light over the summer. All orchids should summer outdoors if possible. That dehydrated pbulb looks dead.

Checking the roots would be a good idea and possibly repotting in a smaller bark with some sphag mixed in could help.

Your plant has to go through winter indoors. The air is extremely dry when you turn on heat. Your plant will need to survive your winter conditions and the best way is to give more moisture holding media around the roots. Buy a small bag of sphagnum moss, mix it with some bark and soak very well until the bark starts holding moisture.

Many Cattleyas flower in winter, I don't know your plant, Arthur could advise about that.

Having the plant spend summer outdoors will help it develop new growths and possibly flowers.

Check those roots.

Jane

Thank you all! I'll repot with some sphagnum moss and start transitioning outside this weekend - hopefully the roots are ok and it can make a recovery!