Steps to reproduce:

Create a new URP project
Import the attached SVG asset
In the Hierarchy, create a Panel Renderer Component with UI Document assigned
Open the UI Document in UI Builder
Add Visual element into the Hierarchy and Save
Select the Visual Element and in Inspector find the Background > Image property
Change the Image type to "Vector" and assign the imported SVG asset
Save UI Builder and Enter Play mode
Exit Play mode
Delete the Visual Element from UI Builder and Save
Enter Play mode and observe the Console

Actual results: Vector asset is still visible in the Game view and "Accessing invalid property UnityEngine.UIElements.UIElementsRuntimeUtilityNative:UpdatePanels ()" errors and "Invalid image specified" warning is shown

Expected results: Vector asset is not visible in the Game view and no errors are shown

Reproducible with versions: 6000.5.1f1, 6000.6.0a5, 6000.6.0a7, 6000.6.0b2, 6000.7.0a1

Not reproducible with versions: 6000.6.0a4

Tested on (OS): macOS 26.5

Notes:

Edit > Project Settings > Editor: for Enter Play Mode Settings, the "When entering Play Mode" setting needs to be set to "Do not Reload Domain or Scene"
In 6000.6.0a5, the error is thrown but the Vector is not visible in the Game view after the 10th reproduction step (delete Visual Element and save), and entering Play Mode after that gives an additional error once more for a single time