If video recording does not start, stops immediately, or produces a black screen, this is usually related to capture mode settings or graphics card configuration.

Follow the steps below in order.

Some systems work better with an alternative capture method.
What to do

1. Open the program settings.
2. Go to General → Advanced tab.
3. Enable Use DirectX for capturing or Use alternative capture mode
4. (only one of these options may be available).
5. Close the settings window.
6. Try recording video again.

Step 2: Update your graphics card drivers

Outdated or incompatible graphics drivers may prevent video capture from working correctly.
Update the drivers for your graphics card, then restart your computer and test recording again.
For step-by-step instructions, see the article below: 
How to update graphics card drivers

If your computer has more than one graphics card, the program may be using the wrong one. This is especially common on laptops with both integrated and dedicated graphics cards.

What to do
Make sure the program uses the integrated graphics adapter in your system’s graphics settings.
For step-by-step instructions, see the following article

After changing the settings, restart the program and try recording again.

If the issue persists, switching to software-based rendering may help.
What to do

1. Open the program settings.
2. Go to Preferences → General.
3. Enable Use software OpenGL implementation.
4. Restart the program and test recording again.

Additional information

To learn more about OpenGL and how it affects rendering, see the related article:

• read here