“NullReferenceException” errors thrown after reimporting VFX package Learning Templates Sample

Steps to reproduce:
1. Create new Unity project
2. Import Visual Effect Graph package
3. Import Learning Templates Sample from Samples tab
4. Reimport the Learning Templates Sample
5. Observe the Console window

Actual results: “NullReferenceException: VFXMemorySerializer::StoreObject failure.” Errors are thrown after reimporting
Expected: No errors or warnings thrown in the Console after reimporting package Samples
Expected results: No errors or warnings thrown in the Console after reimporting package Samples

Reproducible with versions: 17.0.4 (6000.0.54f1),17.1.0 (6000.1.12f1), 17.2.0 (6000.2.0b10), 17.3.0 (6000.3.0a2)

Tested on (OS): macOS SIlicon, Sequoia 15.5

Notes:

•  Also few “Broken text PPtr in file(Assets/Samples/Visual Effect Graph/17.0.4/Learning Templates/VFX/MultiStripGPUEvents.vfx). Local file identifier (8926484042661621169) doesn't exist!
  UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()” errors are thrown