The reason why the fund can't withdraw all the cash may be because:

1. It may be that the investor just bought the fund, and the newly bought fund share has not been confirmed. All funds can be redeemed only after the share is confirmed.

2. It may be that investors have purchased closed-end funds, which cannot be redeemed during the closed period, and investors need to hold them due. Part of the funds can be transferred to the stock market for sale and then withdrawn.

3. It may be that there has been a huge redemption of the fund recently, and the fund manager is considering delaying the redemption share of investors or reducing the redemption amount. See the announcement for details.