An indicator does not appear on the chart in Quantower

What is causing it

The indicator is drawing outside the visible price range, it is on a hidden or collapsed sub-panel, or its inputs mean it has nothing to plot on the current data.

Why this happens

An indicator that produces values outside the visible range is still working correctly, it is just being drawn where you cannot see it. Automatic scaling normally handles this, so a chart with a manually fixed scale is the usual culprit.

The other common case is insufficient data. An indicator needing a long look-back has nothing to draw until enough bars are loaded, which looks identical to a failure.

The fix, step by step

1. Reset the chart's scale, or switch the price axis back to automatic scaling, since an indicator plotting far from price will push everything off screen.
2. Check whether the indicator belongs on a separate sub-panel below the chart, and confirm that panel is visible and not collapsed to nothing.
3. Open the indicator's settings and confirm the inputs are sensible for the timeframe you are on, as a very long period on a short chart may have too little data to plot.
4. Confirm the chart has enough loaded history for the indicator's calculation, because many need a warm-up period before the first value appears.
5. Check the indicator's line colours and thickness, as a line the same colour as the background is invisible rather than absent.
6. Remove and re-add the indicator once you have corrected the settings.

How to confirm it is fixed

The indicator draws on the chart, updates as new bars arrive, and remains visible when you change timeframe.

Stopping it happening again

Leave the price axis on automatic scaling for charts where you use indicators, and load enough history for their look-back periods.