Back end of plants are dead?
It looks like the plants have been pruned back pretty close to the bare twigs and there isn't enough sunlight for the back leaves to grow. I would leave them alone and see what happens in the spring.
Thanks. They’ve never done this before and have been thriving for 5 years. I only trim the tops (bc it blocks the window) never have a need to trim the backs. I’ll let them go and see what rebounds