What are MAE and MFE, and why is that chart empty?
How far a trade went against you (MAE) and in your favour (MFE) before it closed. The chart needs bar data behind each trade, which not every trade has.
These two are the closest thing the app has to watching the trade again. MAE is the worst point you sat through; MFE is the best point you were offered. Together they say whether your stop was in a sensible place and whether you left money on the table.
They are not derived from your fills — they need the actual price bars for the window your trade was open, which is why the chart is the most commonly empty one on the Execution tab. Broker-synced trades generally arrive with bars; CSV imports usually do not.
Settings shows exactly where you stand: a coverage line reading how many of your eligible trades have MAE/MFE values, how many are pending, and a percentage. Trades are processed 25 at a time per click, and there is an automatic catch-up running as well, so the usual answer is to click it a few times or simply wait.
Trades older than about sixty days need a historical data provider configured — Databento for futures, Polygon for stocks — because the free sources do not reach that far back.