P&L differs between the Journal, Performance and the Trades view

You see: the Journal’s Realized total, Performance’s figures and the Trades view do not agree.

Why, and what to check:

• Commissions. Check Settings → Trading → Commissions in P&L and, on Performance, the Include commissions box.
• Filters. The Journal footer follows its own account, status and search filters.
• Missing prices. Both leave out a trade with a fill that has no price. The footer then reads “(N without prices left out)”: by design, those closed trades have a fill with no price, so they are not counted. Open the trade and enter the missing prices.

See The footer totals and Open Performance and filter it.