Thanks a lot for reporting this issue, I confirmed it. But this is not a bug in the RPA software, it is a problem of CCleaner.
UIVision (and many other extensions) store data in the so called HTML5 local storage. Technically this is nothing else than a small local database that is managed by the web browser. Once you delete this file, the data is gone. And it seems CCleaner is removing this file. So in other words, CCleaner is not only cleaning the browser cache, but is brute-force wiping every Chrome file in the harddrive. That is why CCleander demands Chrome to be closed before doing its cleaning.
Now, whether is this a bug or a feature of CCleaner depends on your point of view