Hi Pros,
I created a simple app to get and send data to SharePoint lists. It looks fine if I browse outside SharePoint (on PowerApps mobile app, on PowerApps desktop app, on browser directly through web link, etc.). But, if I embed the app (any app) in a SharePoint Page, a black cover is beign showed. All controls are enabled and I can input text and click on buttons; but I can't see them.
It seems like a screen resolution related issue. I just tested using a 1366 x 768 resolution and this black section appears and seems to be growing as scroll down (like a parallax effect). After that, I tested using a 1920 x 1080 resolution and, as screen don't need scroll-bar and there is no way to scroll down, black cover doesn't appear.
1366 x 768 resolution:

1920 x 1080 resolution:

It would be great if anyone has resolution.
Thanks.