Virtual background doesnt work

Unfortunately one of the main features why I bought manycam doesnt work on my Mac.
The main data of my Mac are:
MacBookPro (13-inch, 2017)
2,3 Ghz Intel Core i5
Intel Iris Plus Graphics 640 1536 MB

Can you please offer some advice?


Please provide a screenshot.

A screenshot of the cam with virtual background? If yes, see attached file.

Thank you @Mildenberger,
Our support will contact you soon with the debugging build, so we can realize the reason.
BTW, what is your macOS version?

I use macOS High Sierra (10.13.6)