Fix Chunks Not Loading on Vintage Story Server

If you run a Vintage Story server and chunks fail to load, players will fall through the world, see floating blocks, or get stuck in ungenerated terrain. This guide walks through the most common causes and fixes, from simple client-side checks to server configuration and world file repairs.

What You’ll Need

• Access to the server console or hosting panel
• File access to the server directory (FTP or file manager)
• Ability to restart the server
• Optional: a backup of your world folder

Step-by-Step

1. Check server resources. Chunk loading is CPU and RAM intensive. If the server is low on memory or the CPU is pegged, chunks will fail to generate. Open the server console and look for out-of-memory errors or high usage. If needed, increase the RAM allocation in your server startup script (e.g., add -Xmx4G for 4 GB) and restart.
2. Verify the server is not overloaded. If you have many players or large view distances, the server may be struggling. Reduce the serverViewDistance in serverconfig.json (default is 8; try 4 or 6). Also reduce the maxChunkGenerationThreads if set too high (default is 2).
3. Restart the server. A simple restart can clear stuck chunk generation tasks. Use the console command /stop and then start the server again. This often resolves temporary chunk loading issues.
4. Check the server log for errors. Look in the Logs folder for server-main.log. Search for lines containing “chunk”, “exception”, or “error”. If you see a stack trace mentioning chunk generation, note the world coordinates and the error type.
5. Delete corrupted chunk data. If a specific chunk is corrupt, you can remove it so the server regenerates it. Stop the server, navigate to the world folder (e.g., World), and find the region files (files with .vcm extension). Use a tool like a region file editor to delete the specific chunk, or if you are comfortable, delete the entire region file (this will regenerate the whole region, losing changes in that area). Back up the file first.
6. Run a world repair. Vintage Story includes a world repair tool. In the server console, type /world repair (if available) or use the worldgen command to re-generate missing chunks. If that fails, you may need to use the vsserver command-line tool with the --repair flag (check your server documentation).
7. Check disk space. If the disk is full, the server cannot write new chunk data. Verify you have free space on the drive where the world is stored.
8. Update the server. Ensure your server is running the latest version of Vintage Story. Chunk loading bugs are often fixed in patches. Check the official Vintage Story website for the latest server version.
9. Disable mods. If you use mods, they can interfere with chunk generation. Temporarily disable all mods by moving them out of the Mods folder and restart the server. If chunks load fine, re-enable mods one by one to find the culprit.
10. Verify client settings. Sometimes the issue is on the client side. Ask the affected player to lower their View Distance in the client settings and to disable any graphics mods that might affect chunk loading.

Common Mistakes

• Not backing up before deleting files. Always back up your world before removing region files or running repairs.
• Confusing client and server view distance. The server view distance is what matters for chunk generation; the client view distance only affects what the player sees.
• Ignoring the server log. The log often contains the exact reason for chunk failures. Skipping this step leads to guesswork.
• Over-allocating RAM. Giving the server too much RAM can cause the OS to swap, which is worse. Stick to 4-8 GB unless you have a very large world.

Tips

• Set up a scheduled restart (e.g., daily) to clear memory leaks and stuck tasks.
• Use a SSD for the server to speed up chunk read/write operations.
• Monitor server TPS (ticks per second) with a mod or console command. If TPS is below 20, chunk loading will suffer.
• Keep backups of your world regularly, especially before making changes.
• If you run a public server, limit the number of players exploring new areas simultaneously to reduce load.

Troubleshooting

If the steps above do not resolve the issue:

• Check if the problem is world-wide or local. If only one area fails, it’s likely a corrupted chunk. If the whole world fails to load, it’s a server configuration or resource issue.
• Test with a fresh world. Create a new world on the same server. If the new world loads fine, the issue is with your existing world file. You may need to restore from a backup.
• Try a different server host. If you are using a hosting provider, their hardware or configuration may be the problem. Contact support or try a different provider.
• Reinstall the server software. Download a fresh copy of the server files and copy your world over. This can fix corrupted server binaries.
• Ask the community. The Vintage Story forums and Discord have a dedicated support section. Provide your server log and world coordinates when asking for help.

Frequently Asked Questions

Why do chunks load slowly but eventually appear?

This is usually a performance issue. The server is generating chunks slower than players move. Lower the server view distance, increase RAM, or reduce the number of players exploring.

Can I force chunks to load in an area?

Yes, you can use the /chunk command (if enabled) or have a player stand in the area for a while. Some server mods add chunk pre-generation tools.

Will deleting a region file delete my builds?

Yes, deleting a region file will remove all blocks, entities, and player data in that region. It will regenerate as a fresh, untouched area. Only do this if you are sure you don’t mind losing the changes there.

How do I back up my world?

Stop the server, then copy the entire world folder (e.g., World) to a safe location. You can also use the in-game /backup command if your server has it enabled.

What is the ideal server view distance?

For most servers, a view distance of 4-6 is a good balance between performance and visibility. Higher values require significantly more CPU and RAM.

My server has plenty of RAM, why are chunks still failing?

Chunk generation is CPU-bound, not just RAM-bound. The server may be maxing out a single core. Try reducing the number of generation threads or lowering the view distance.

Related

• 4dead Demo Performance Settings for Smoother Steam Gameplay
• Best Abilities Miles Morales Spider-Man Guide
• Pixel 2 Weird Bug Annoying? Fixes That Work