When "Set Trigger" OR "Set Collider" is applied to the object and exported, it causes the editor to throw below error:
Material doesn't have a color property '_Color'
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&),
Refer attached video.

Steps to repro:
1. Create a new project.
2. Window > Package Manager > ProBuilder > Install
3. Tools > ProBuilder > ProBuilder Window
4. Create a New Shape
5. Enable "Set Trigger" OR "Set Collider"
5. Export the Object

Actual Result:
"Material doesn't have a color property '_Color'" error is thrown on exporting Object which has Set Trigger is applied

Expected Result:
Object get exported without throwing any error even if it has Set Trigger applied

Occurring in:
2020.2.0a10, 2020.1.0b7 with package version: 4.3.0-preview.7, 4.3.0-preview.4

Working fine in:
2020.2.0a10, 2020.1.0b7, with package version: 4.3.0-preview.2, 4.2.3

Environment:
Windows10 and macOS 10.14