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I will fix unreal engine 5 bugs, crashes, packaging errors and lag
wiliams prosper
About this gig
Is your Unreal Engine project crashing, failing to package, or running at a low frame rate? I fix Unreal Engine 4 and 5 problems so you can get back to building your game. I investigate the cause first, then fix it in your own project, using Blueprints or C++ depending on the issue.
What I can help with:
- Editor and game crashes, including startup and launch crashes
- Packaging, cooking and build errors for Windows and Android
- Blueprint errors and C++ compile errors
- Low FPS, stuttering and long loading times
- Shader compile problems, material and lighting bugs
- Multiplayer and replication bugs
- Plugin errors and UE4 to UE5 project upgrades
How it works:
- Send me your engine version, the error message or log, and a screenshot.
- I review the problem and confirm that I can help before you order.
- I fix it, test it and send you the result with a short note on what was wrong.
Why work with me:
- Clear communication and quick replies
- I work carefully and never change parts of your project that are not part of the problem
- Documentation of the fix, so you can avoid the same issue later
Please back up your project before sending it. Message me before ordering so we can confirm the scope.
Get to know wiliams prosper
wiliams prosper
unreal enging game development
- FromUnited States
- Member sinceOct 2026
Languages
English, Spanish, French, German
I am a full-time Unreal Engine developer with hands-on experience in UE4 and UE5. I build complete games, from first prototype to polished release, using Blueprints and C++. My services include multiplayer systems, gameplay mechanics, 3D and mobile games, VR projects, bug fixing, performance optimization, and blockchain-based NFT game features. I focus on clean, well-organized work, clear communication, and on-time delivery. Message me with your idea or your project problem, and I will help you turn it into a working game.
Other Game Development Services I Offer
FAQ
What do I need to send before I order?
A: Your engine version (UE4 or UE5), the error message or log file, and a screenshot. A short description of when the problem happens also helps. I will confirm I can help before you order.
Can you fix every bug?
A: I cannot promise that every issue can be fixed. I investigate first and tell you what is possible. If I cannot solve it, I will say so honestly and we can cancel the order.
What is the difference between the three packages?
A: Basic fixes 1 bug, crash or packaging error. Standard fixes up to 5 issues and improves performance. Premium covers up to 10 issues, optimization and a stable packaged build.
Do you fix packaging errors for Android?
A: Yes. I can fix cooking, build and packaging errors for Windows and Android, including SDK and NDK setup problems. Please tell me your engine version and send the error log.
Can you help with low FPS and lag?
A: Yes. I check the common causes, such as heavy lighting, materials, draw calls and Blueprint logic, then optimize what is slowing the game down.
Can you upgrade my UE4 project to UE5?
A: Yes, in many cases. Message me with your project details first, since larger projects with many plugins may need a custom offer.
