Problems with videoconference in Rainbow Bubbles

Hello,

We are having some problems tih videoConferences in bubbles.

If we create a Bubble with 3 users; let's name them as userA (win7 user), userB (MacOs user) and userC (win10 user), and we start a videoconference between all them we get the next scenario:

UserA --> he can view the video of userB but not the veio of userC

UserB --> he can view the video of userA but not the veio of userC

UserC --> he can't view video of userA either userB

if we make a videcall between:

uaserA and userB --> they can view each other on video

uaserA and userC --> they can view each other on video

uaserB and userC --> they can view each other on video

We are using the desktop app version 2.79.14 in windows 10, windows7 and MacOs 10.15 Catalina

Any idea of how to solve this problem?

Any other notification concerning this problem?

Thanks,

Jon