Top 700 technical problems

GPU usage remains low while game performance is poor

React form submits twice after one button click

Google Drive file shows different version on two devices

React modal closes immediately after opening

Screen share appears black to other participants

React app becomes very slow after rendering a large list

FastAPI CORS works locally but fails after deployment

Next.js hydration error appears only after production build

Django migration exists but database table is missing

Flask session cookie disappears between requests