Click on the journal where the transaction was entered. I think you have clicked on a branch journal instead of the leaf level journal where the transaction was entered.
For example, you can alter NewViews > Journal > Bank and from the transactions explorer and alter a check entry which does have a reference column in it’s details. Review the details and correct or click on NewViews > Journal > Bank > Payment > Bank Payments and alter the entry in the transactions explorer of this Bank Payments journal.
Regards to All,