Failed transactions - primal. docs

A failed transaction never executed. Nothing was bought or sold, and because fees are atomic with the swap, no platform fee applies. The only cost is the network fee your wallet showed before you signed.

Causes and fixes

Failure	What happened	What to do
Slippage exceeded	Price moved past your tolerance before landing	Raise slippage or use Auto
Blockhash expired	Congestion outlived the transaction’s validity	Retry with a higher priority fee
Insufficient SOL	Amount plus fees exceeded your balance	Leave headroom for network fees
Pool state changed	Liquidity pulled or curve completed mid-flight	Re-check the token before retrying
Protected lane full	Anti-MEV mode could not land it safely	Retry; the terminal never falls back to the public mempool for you

Where they show

The Activity tab labels these plainly as failed transactions. They are never counted as trades, they never touch your PnL, and they are hidden behind a counter by default so the history stays readable.