Fix React TS Dropdown Issue on Website

I'm experiencing a problem with a single-select dropdown on my website's category page. The dropdown is unresponsive; it merely blinks when I attempt to make a selection. This issue is preventing me from progressing to the next step.

I'm looking for a freelancer who can help diagnose and fix this issue. Please ensure you have the following skills and experience:
- Expertise in React and TypeScript
- Experience in fixing UI issues
- Ability to work on a tight timeline