Importing layers via Drag & Drop is broken

Steps to reproduce:

1) select an existing layer and export it to the filesystem
2) select the file and drag&drop it to the map
3) error thrown

<img width="924" height="391" alt="Image" src="https://github.com/user-attachments/assets/f181cd91-913e-4783-8b7f-c7ea6e4262c3" />