It is similar to what i am seeing.
This is my screenshot:
I did what you say. Enable grace developer features, kill twice jxbrowser and restart composer. After that, i try to open cfg file and get the same result (see screen above). In Process Explorer i can see either, that when i open cfg, jxbrowser is starting. So i just disable internet connection, and jxbrowser doesn't start then. But it doesn't help.
I found these thread: https://e2e.ti.com/support/development_tools/code_composer_studio/f/81/t/569770. Their solve problem to setting up "English as a default language" in Windows OS. It doesn't work to me neither at home nor at work.
For the moment, it's enough to me that examples from the controlSuite work with ccs6. Examples from the C2000Ware Digital Power package will be needed later. I just wanted to see them.
Therefore, this problem is no longer relevant to me.
However, if you need my help in solving this problem, you are welcome. But I suggest creating a separate post for this (or continue there, to which I gave the link) since this is already far from the problem I identified at the beginning.
Regards, Igor.