Why do I have "Other Transactions"

Your Other Transactions can be found on the bottom of the Wallets page.

“Other Transactions” is a catch-all miscellaneous wallet for all your manual transactions that are not classified to an existing imported/synced wallet. This means that any transactions that are not associated with an Exchange, Wallet, or Import will automatically be grouped in your Other Transactions.

Your Other Transactions Wallet cannot be deleted (it’s always a placeholder for any unclassified transactions), but the transactions within it can be manually deleted from the Transactions Page.