Winter rest for Dendrobium nobile

[MrHungx]

I bought a Den. Fancy Angel ‘Lycée' from Trader Joe's a few months ago. It finished flowering last month. It has 1 mature pseudobulb, 2 smaller leafless back bulbs, and one new growth that has yet to mature. It also had a mature flowering keiki that I ended up separating and giving to my aunt. The leaves on the larger mature pseudobulb are starting to yellow and fall off. Is this Dendrobium entering its winter rest? Or is there some other cause for concern? I guess I'm just not used to orchids that need a winter rest blooming off season.

[NYCorchidman]

Pictures will help, but I don't think yellowing is a problem if it's just one or two random leaves here and there.
They are "supposed" to shed their leaves during the rest, which is before the flowering.
However, many hybrids like yours for example, won't shed leaves if kept too warm.

You want to put your plant in the full sun or very strong light possible and water normally.
Your plant just finished flowering and now is the time to grow, so your goal is to maximize the growth for the next few months. The taller the cane, the more nodes, meaning more flowers next season!