Power BI developers often struggle with version control and deployment, especially in collaborative environments. Without proper versioning, tracking changes and maintaining a history of updates becomes difficult. Using tools like Git for version control can help manage report versions, but integrating these with Power BI requires additional effort. Deployment challenges include managing different environments (development, testing, production) and ensuring that changes do not disrupt existing reports. Developers must use tools like Power BI Deployment Pipelines or third-party solutions to automate and streamline the deployment process, reducing the risk of errors and maintaining report integrity.