Oh..Sandra, I'm so sorry. No worries..the winds knock down my plants almost weekly and they are still thriving ( after repotting ). Artworks don't mend themselves , but thank goodness orchids do. They are pretty tough . Yes, the rain...the humidity is like 120% right now , I'm drowning in it
I've managed to fill up 3 big trash cans with rain water, and some smaller containers, started only after I got home from work today..now I'm rich.
Catts have so many big thick roots and they are prone to rot, but they are also vigorous plants, some new shoots are always coming up that will throw out new roots . Of all my 47 catts, I haven't lost one yet from root rot. Your catt could have just been in the same medium for too long, the old medium and the plant can't absorb all that water it's been given fast enough, even if there wasn't much water. Or the roots were kept too dry too long ,beyond recovery, and they lose their functions.
I've repotted a few catts that came to me with absolutely no good roots, yet they defied the odds and grew out bunch of new roots and thrive not long after that.
Your catt is fine, after you repot it , keep it on the dry side, only misting the top of the medium and pseudobulbs daily, keep it out of strong light. In a couple of weeks you should see new roots and you can proceed with the regular watering and fertilizing. I hope this helps some.