Ah, it appears that I had misunderstood what you wanted to see. You want to see the ETF performance data totally separately from the MF performance data.
In a test file I am seeing the same thing you are when I entered Corporate Acquisition transactions. Corporate Acquisition are a good way to exchange one security for another when you want to retain/transfer Cost Basis and lot identity from the old security to the new security. It essentially treats both sides of the transactions as a single continuous investment with the only difference being the names and tickers of the investment. So, the Total Gain for the combined old security + new security is correctly shown in the Portfolio View.
If that is not what you want to see, then I suggest you back up your data file in case something goes wrong or you do not like the end result. Then delete the Remove Shares and Add Shares transactions on 6/14 for the securities in question. Then do Sell transactions (sell all shares) for each of the old securities followed by Buy transactions for each of the new securities.
The advantage of doing it this way is the old and new securities will be reported in Quicken as totally separate from each other and the Total Gain from the old securities will not be included in the new securities data.
The downsides of going this route include: