Infinite loading when too many elements are selected

Description

When a user selects a large number of elements simultaneously, the system enters an infinite loading state instead of processing the selection or displaying an error message.

Steps to Reproduce

1. Navigate to the element selection screen.

2. Select a high volume of elements

3. Moove them

4. Observe the loading spinner.

Expected Behavior

The system should either:

• Process the batch successfully within a reasonable timeframe.

• Implement pagination/batching to handle large datasets.

• Display a user-friendly error message or a limit warning (e.g., "Maximum 100 elements allowed").