Material property settings throwing error

### 🔍 Before submitting the issue

- [x] I have searched among the existing issues
- [x] I am using a Python virtual environment

### 🐞 Description of the bug

It seems EDB grpc is throwing error which are harmless but bring confusion.

PyEDB INFO: EDB initialized.
PASSED [100%]ERROR - InvalidArgumentException('Illegal operation on a null object')
ERROR - InvalidArgumentException('Illegal operation on a null object')
ERROR - InvalidArgumentException('Illegal operation on a null object')

### 📝 Steps to reproduce

Execute pyedb test called test_material_properties inside test/system/test_edb_materials.py -> line 83

### 💻 Which operating system are you using?

Windows

### 📀 Which ANSYS version are you using?

Na

### 🐍 Which Python version are you using?

3.9

### 📦 Installed packages

```shell
NA
```