Hello,
I recently posted in the cactus and succulent forum about my dying Christmas cactus. Over the last few months, the leaves have become wilted and a darker green than usual. A month ago I was concerned, so i removed the rootball and found that the soil was rock solid. After breaking up the solid dirt i repotted the rootball in fresh soil. I thought maybe the plant was showing small improvement until two days a go a limb 1/3 of the plant's overall size fell off! I am very concerned about the plant as it has a lot of sentimental value. Can you help? Thank you in advance. Below i will post a link to the thread i created (with pictures):

The thread "Unhealthy Christmas cactus, please help!" in Cactus and Succulents forum

Thank you very much for any advice you might be able to give.
Regards,
Thughorse

Posting in the Cactus and Tender Succulents Forum was the correct place. If you just give it a few days folks will respond. Look at the images you posted it would seem that taking cuttings to start a new plant is the way to go.

I agree with @Greene. Take cutting and start new plants.

The problem may be that the plant was so stressed with the potting soil problem, that it will take some time for those ill-affects to run their coarse. Starting cuttings will be your "emergency" plan in case the plant continues to decline.

By the way, @Thughorse. When you have a moment , update your profile by clicking on the little "guy" in the upper left-hand column. Then click on "Change Your Public Profile" and add your location. This can be city/state and/or USDA zone. Scroll down to the bottom of your profile information page and then click on "Save Your Changes". Now, every time you post, we will know where you are.