“History loading stalled”: the Senzoukria chart gauge stops moving

What you see

The loading overlay stops at a percentage, then disappears and the chart shows “History loading stalled — the chart keeps running on cached and live data. Retry from the chart settings (⚙ → Trading Settings → Reload history).”

Why it happens

A healthy download emits a progress event every few seconds, one per chunk, and skips empty windows quickly. Two minutes without a single event means the download is dead, not slow. That happens when the channel between the interface and the backend breaks mid-download: a webview reload, a refused IPC socket, or a backend that stopped. Without the watchdog, the overlay would stay frozen on its last percentage forever; with it, you get a usable chart and an honest notice.

How to fix it

• Open ⚙ → Trading Settings → Reload history to start a new download.
• If it stalls again at the same place, restart the app and open the chart again.
• Reduce the history range in Trading Settings if you asked for a long window on a busy contract; a week of 1-minute footprint is many ticks.
• Check the connection badge: a broker connection that drops during the download also ends it.

What it is not

• Not a refused request: refusals have their own notices with codes.
• Not a slow broker: a slow download still emits progress and does not trigger the watchdog.

When to contact support

If the message comes back after these steps, report it from Menu → Report a problem or on the Senzoukria Discord. Mention the percentage where it stopped, the history range, and whether it happens after the app was left in the background.