Failed to lock vertex buffer in CMeshDX8 Fixing LockVertexBuffer error in CSGO

The “Could not lock Vertex Buffer in CMeshDX8 LockVertexBuffer”error has been haunting the CSGO community for years and players are looking for an easy fix. This error causes the game to crash and the system to freeze. If you crash during a competitive match, you will definitely get a cooldown or, worse, a ban. To avoid this, we will tell you how to fix this error.

How to fix “failed to lock vertex buffer in CMeshDX8 LockVertexBuffer”error in CSGO

“Could not lock Vertex Buffer in CMeshDX8 LockVertexBuffer”is a rendering error that occurs when high fidelity models are used on the map. If you have an outdated system, you may encounter this error, and here are some easy ways to fix it:

• Enable multi-core rendering
• Check the integrity of game files

Fix 1 – Enable Multi-Core Rendering

As the name suggests, enabling the multi-core rendering option in CSGO will run the game using multiple cores of your CPU. Thus, the CPU distributes the load among several cores and speeds up the rendering process. However, you must have a CPU with four or more cores. To enable multi-core rendering in CSGO:

1. Launch the game and go to Settings.
2. Go to the Video tab.
3. Scroll down until you find the Advanced Video section.
4. Find the “Multi-core rendering”option and turn it on.

Enabling the multi-core rendering option in CSGO is the best way to fix the “failed to lock vertex buffer in CMeshDX8 LockVertexBuffer”error.

Fix 2 – Check the integrity of the game files

Image Source: Steam Support

Sometimes this error can occur due to corrupted or missing files. However, the Steam client offers you an easy solution. Follow these simple steps to resolve this issue:

1. Launch Steam and go to the Library tab.
2. Then right click on CSGO and select “Properties”.
3. Click the Local Files tab and select Browse Local Files.
4. Uninstall the CSGO app and restart your computer.
5. Then launch the Steam client and go back to the Local Files section.
6. Click “Verify Integrity of Game Files”and wait for the process to complete.

These are the two best ways to fix the “could not lock vertex buffer in CMeshDX8 LockVertexBuffer”error in CSGO. For more content like the best low cost PC settings, be sure to check out our CSGO section.