Missing balance & incorrect USDC/USDC.E tracking on Arbitrum & Polygon wallets

Koinly Support
1

Describe the problem:
Transactions are missing purchaes history

Which exchange/wallet is this regarding?
Kraken wallet arbitrum

How did you import data into this wallet?
Through my wallet address

What have you tried to fix this so far?
Full resync

but it still says

  • Missing 999.000022 ꓴꓢꓓС between 2025-11-07 14:01:08 UTC and 2025-11-12 12:17:21 UTC

Quite new book, only 23 transactions.

I also struggle with polymarket (Polka)

Asset Calculated Balance Reported Balance Difference
USDC 884.411959 0.0 884.411959
USDC.E 87.6 972.011959 -884.411959

Maybe ocrrelated? i used the polyscanner and it says ive only usdc.e and not usdc so unsure why koinly says ive usdc

2

Hi @lammiver

You should check the transactions. These errors are generally due to spam USDC tokens. Refer to :snake: Address poisoning

If this is not the case, please refer to our support team via the in-app chat to have a closer look at this.