Please note, that some of these versions are not published yet.
Answer from QA team: "I have checked this issue with latest Unity versions and can confirm that this is fixed in versions : 5.6.1p4, 2017.1.0b9, 2017.2.0a3 - just download one of these versions and your issues should disappear.
The program you want to download will be downloaded through the Soft32 Downloader.
Soft32 Downloader is an executable Windows program that enables you to download computer programs, making the download process much faster and showing a progress bar.
We don't have any change log information yet for version 2.51.828.0 of Logitech Webcam Software.