Today I upgraded CKEditor from (I think) 7.x-1.9 to 1.12, and it stopped working with TouchPro for editing articles.

If I switch to Seven, Bartik, or 0 Point themes, CKEditor works fine. I notice the following in the help file with CKEditor:

CKEditor does not work in my theme
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Your theme may be missing the following code:

print $scripts;

Add that line of code to the head section of your theme.

Another possibility is that the following code might be missing in your theme:

print $closure;

The solution is similar as above - you need to add that line to your theme at the end of its code.

Finally, you can also switch to a different theme.