A related one, because it produces the same "is it stuck?" feeling: an import that shows "Queued (position N)". Two imports run at a time across the whole service. If both slots are busy — which happens when somebody uploads to several profiles back to back — yours waits, and starts by itself when a slot frees. Nothing is lost by queueing and nothing needs re-uploading. The processing indicator stays visible the whole time; that is how you know it is alive. The genuinely stuck case looks different: the indicator disappears and no sessions arrive. The server's watchdog marks a dead import as failed and tells you to re-upload — and because of de-duplication, re-uploading is safe.