If it were mine, I would have trimmed the roots to the depth or the pot or less. I would do this even if there were not all that many roots. I have found that roots with their toes in the water tend to rot easily.

Seedling mix is probably to water retentive. What is on the first part of the tag? Lc, Onc, some abbreviation for a general type?

Thanks richardol -
I will repot again and cut off the long roots. I thought about doing that but, since I know nothing about orchids, I wasn't sure about trimming the roots.

It seems there were a lot of wood chips in the original pot. Do they sell a specific soil for orchids like they do for cactus or would a cactus mix be OK for an orchid?

I'm not sure what you mean when you asked - What is on the first part of the tag? I'm not familiar with Lc, Onc? What does that mean?

Thanks again for your info.

It is probably Blc. Mystic Isles.
How big is the plant?
How many pseudobulbs does it have?
Where do you live?.
Where does the plant grow and so on?
Google Blc. Mystic Isles and select images to get an idea of what the plant might look like.

The bark chips allow for water absorption and yet plenty of air around the roots. Seedlng mix is too dense, will hold too much moisture, and doesn't allow much air to the roots, which orchids need.

"Do they sell a specific soil for orchids like they do for cactus or would a cactus mix be OK for an orchid?"

Hello!
Yes, there is a pre-made mix commonly sold as "Orchid Mix," which contains bark (fir),
perlite, and peat. However, I prefer to pass on the peat and use fine-grade "Orchid Bark"
with a bit of perlite and pumice added for durability, open drainage, and structure.

Josh