Why can I see GA4 events in DebugView but not in my standard reports?

Usually it means GA4 received the event, but the normal reports haven't finished processing it yet—or the event was excluded by a data filter. DebugView is a live troubleshooting view, while standard-property intraday reporting typically takes 2–6 hours and daily processing can take longer. First, check the same event in Realtime, then give it until the next day before calling it missing. If it still isn't there, check Admin > Data filters: an active developer-traffic filter can let debug-mode hits show in DebugView while permanently keeping them out of reports, and an internal-traffic filter can do the same for matching traffic. Also make sure the report's date range, comparison, or report filter isn't hiding the event. If you're testing, leave the developer filter in Testing mode until you've confirmed what it excludes.