There are instances where slides can look scrambled when using chromium-based browsers (Chrome, Edge) and Intel integrated graphic cards (Common on laptops.) This issue can occur in the classroom as well as when previewing slides in the management console.
The issue is not related to Strigo, but can be fixed by changing settings on your browser.
In order to do this, you'll need to copy this into your browser - chrome://flags/#disable-accelerated-2d-canvas - and disable Accelerated 2D Canvas
Copy this link into your browser: chrome://flags/#disable-accelerated-2d-canvas
Select Disabled next to Accelerated 2D Canvas
click Relaunch (This will relaunch your entire Browser. All open tabs will be relaunched, and all Incognito tabs will be lost)
Please refer to the video below: