Hi @Comm Yan ,
Can you see your code in Elements Panel? Do you have the same issue in Chrome DevTools? You can start by repairing DevTools at Settings --> Restore defaults and refresh.
I have noticed that here you don't have the line&column information, where it should have at least line 1, column 1 even if the file doesn't have any content. So it looks like an issue of Chromium DevTools because there's a similar issue post here. Of course, you can try re-installation first. If re-installation does not resolve this issue, you can share this issue on that issue post so Chromium Dev Team can learn more about it. Additionally, you can send feedback to Edge Dev Team to report this issue. Just press Alt+Shift+I in Microsoft Edge.
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