In your ticket information I saw that your Sitefinity version is 4.4.2117, am I right. I tried to set up the environment as described in the previous reply but I could not reproduce the problem locally.
In my case, when i had a news item (detail view) opened and tried to change the language, it was redirecting me to the list view of the translated news (i.e. the fallback is working).
Could you please explain us in more details what is the scenario (and the setup of the widgets) in which you have problems and also to tell us which version of Sitefinity are you using, so we could try reproducing the problem again and hopefully offer you a solution.
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