Does the “Proceeds from Sales of Investments” under “Cash Flows from Operating Activities” always represent proceeds from the sale of shares of portfolio companies?

I'm looking at an example were the “Proceeds from Sales of Investments” balance equals the “Cash and Cash Equivalents” balance, but these are supposed to be funds from a recent capital call that are temporarily in the fund's bank account as they are already committed to be transferred to portfolio companies to pay for new investments. I don't how is it possible that it got registered as “Proceeds from Sales of Investments”. Can this simply be a journal entry error?