T-SQL Code Bug Fix for Data Quality Issue

I need an expert T-SQL developer with a strong background in query optimization, performance improvements, and debugging stored procedures to help fix a bug in my code. While I expect the fix to take less than 20 minutes, I'm keeping the session open for up to one hour.

Skills required:
- T-SQL
- Query Optimization
- Performance Improvements
- Stored Procedure Debugging
- SQL Bug Fixing

The goal is to quickly identify and resolve the issue affecting our data quality. If you have experience in these areas, please get in touch.