Numerous internet users have encountered a problem where file uploads are not working in DeepSeek's 'Expert Mode.' According to official statements, this feature has been disabled due to current resource constraints. Consequently, file upload functionality has been eliminated from both the web-based version and the App for this particular mode. At present, the 'Quick Mode' continues to support the uploading of files and images, although it only has the capability to recognize text within those images. Moreover, DeepSeek is in the process of conducting a grayscale test for a historical chat record search function. This allows a select group of users to search through their chat history using specific keywords. It's worth noting that DeepSeek's Expert Mode was officially launched on April 8th. In contrast to the Quick Mode, which is tailored for everyday conversations, the Expert Mode is specifically engineered to tackle more intricate and complex problems.