VCam + Skype For Business (formerly Lync) = image stretched

Hi all, as stated in the title, I just bought a lifetime license but VCam doesn’t work with Skype for Business. Vcam image is just not in the right proportions.
I’m using Logitech C920 cam.

Please help

Hi there, can you provide me a sample screenshot showing this preview? And, does it look fine when using your regular webcam directly on Skype for Business?