[V1.4.2] No Valid actions to execute handling

<img width="898" height="443" alt="Image" src="https://github.com/user-attachments/assets/ecbb74e1-44ed-4b93-bbe8-3014d81f0521" />

The "No valid actions to execute" error message should be inside the action thread, instead of showing as an error message outside of it. Need better error handling and display. 