Unable to Create New Taxonomy Terms Despite "Allow Creating New Items" Enabled

First thank you for this great module!

Description:

I am experiencing an issue with the Simple Hierarchical Select (SHS) module in Drupal 11.1.1. Although the module is correctly installed and configured, I am unable to create new taxonomy terms when using the field.

Steps to Reproduce:

1. Install Drupal 11.1.1 and the Simple Hierarchical Select module (version 3.0.0-alpha4).
2. Create a field that uses the SHS widget and references a taxonomy vocabulary.
3. Enable the "Allow creating new items" option in the field settings.
4. Attempt to add a new term while editing content.

Expected Behavior:
A new taxonomy term creation button should appear when trying to create a new item.

Actual Behavior:

No option to create a new taxonomy term is available during content editing. The module generates no errors in the log.

Additional Information:

• Drupal Version: 11.1.1
• SHS Module Version: 3.0.0-alpha4
• PHP Version: 8.3
• I have verified that all settings are correct, and the issue persists across multiple vocabularies.
• Windows 10 Home
• Chrome Version 132.0.6834.84 (Offizieller Build) (64-Bit