lib/token-allowance-gateway.ts:537-559 — getTokenAllowanceGateway() returns a process/tab-wide singleton holding _records: Map<token::spender, {allowance, state, ...}>.
Nothing invalidates it on a wallet account switch. WalletContext's WatchWalletChanges handler (contexts/WalletContext.tsx) updates publicKey and clears the React Query cache on an external account change, but does not call resetTokenAllowanceGateway().
Impact
After switching accounts in Freighter, app/create/page.tsx's gateway.checkAllowance can return the previous account's cached allowance for a token+spender pair (checkAllowance only overwrites record.allowance on a successful RPC, and reads the stale value meanwhile), so the approve step may be skipped and create_stream then reverts on a missing transfer_from allowance.
Suggested fix
Key records by owner too, or call resetTokenAllowanceGateway() from the same places that call queryClient.clear() on disconnect/account-change.
lib/token-allowance-gateway.ts:537-559—getTokenAllowanceGateway()returns a process/tab-wide singleton holding_records: Map<token::spender, {allowance, state, ...}>.Nothing invalidates it on a wallet account switch.
WalletContext'sWatchWalletChangeshandler (contexts/WalletContext.tsx) updatespublicKeyand clears the React Query cache on an external account change, but does not callresetTokenAllowanceGateway().Impact
After switching accounts in Freighter,
app/create/page.tsx'sgateway.checkAllowancecan return the previous account's cachedallowancefor a token+spender pair (checkAllowanceonly overwritesrecord.allowanceon a successful RPC, and reads the stale value meanwhile), so the approve step may be skipped andcreate_streamthen reverts on a missingtransfer_fromallowance.Suggested fix
Key records by
ownertoo, or callresetTokenAllowanceGateway()from the same places that callqueryClient.clear()on disconnect/account-change.