Divly has automatic handling in place to filter out duplicate transactions. Even if you upload old transactions again into Divly, the system will recognize that they are duplicates and skip importing them entirely.
For this to work please ensure that you only import transactions in a wallet using one method (File Import or Automatic Import). Mixing and matching different import methods can sometimes create duplicate transactions if the exchange provides different timestamps via the two different exports.
I am seeing duplicate transactions!
If you are seeing duplicate transactions, either delete the wallet that is duplicating those transactions, or delete the duplicate transactions individually.
Usually this occurs if you mix and match different imports for the same wallet (e.g. you use both the File Import and Automatic Import).