Traffic chart is broken in GUI

### Is there an existing issue for this? - [x] I have searched the existing issues. ### What's the problem? <img width="1212" height="297" alt="Image" src="https://github.com/user-attachments/assets/351289c5-42b4-478e-a4ff-1f0e989911ed" /> ### How did you install the app? downloaded one of the provided packages ### Operating System Windows ### Additional context _No response_