When exporting transactions, it exports the data exactly as it appears in the Transactions table. This means that grouped transactions are exported as a single line (the group). The data for the transactions in that group are not exported.

Similarly, with split transactions, the original parent transaction data isn't exported. It would be great to have the complete data exported. For example, the data for the group in one row, and below it the individual transactions in the group. Similarly, the data for a parent transaction in one row, and the splits in individual rows below it.

Alternatively, support the option to toggle between showing grouped transactions in group or on separate lines in the table, or split transactions vs original transaction. That way it gives the users the option to export either way (based on what appears in the table).