Part 2

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Missing update of variables in `else` block of `CreditDelegationBranch::settleVaultsDebt` after the swap operation.

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After a successful swap operation, some variables update are missing. The logic inside the `else` block of

`CreditDelegationBranch::settleVaultsDebt` lack updating the `usdcAvailableForEngine`.

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The USDC available for the vault engine is more compare to the actual balance because it is never updated after the swap

operation of USDC(reduction) to vault asset(addition).

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Consider adding this line of code

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+ UsdTokenSwapConfig.load().usdcAvailableForEngine[vault.engine] -= ctx.assetOutAmount;