Describe the problem:
I synched all of my wallets yesterday and all 4 of my Tezos wallets uploaded duplicates of previously uploaded transactions, many of which had been merged, labelled and described. Duplicate transactions were in original form, i.e. not merged, labelled or described. Duplications covered all XTZ transactions from Decemeber to the present, i.e. many hundreds of transactions. This is the second time that I have had to deal with a big duplication issue in the past year.
Which exchange/wallet is this regarding?
All 4 of my non-exchange Tezos blockchain wallets, including Ledger wallets and a Kukai wallet.
How did you import data into this wallet?
All data imported into all 4 wallets has been done by regularly synching the API.
What have you tried to fix this so far?
I have used TzKT to identify duplicate transactions and I have permanantly deleted the duplicates. I have then re-synched these wallets via API and the duplicates have not reappeared. This is a very disturbing bug that I would really like to ensure does not happen again.