Maybe this has always been the way Quicken displays the per share basis price in the account Holdings overview. If so, I'm just noticing it now (Premier for Windows R53.16 build 27.1.53.16).
I was trying to trace an error in the Cost Basis of a stock after a simple single lot RtrnCap transaction (will be in separate thread). When I opened the holdings overview and saw the discrepancy. I tried checking things by multiplying the basis per share x the number of shares and it was off. I set the holdings overview date to the purchase date and while the total basis was reporting correctly, the per share price x the number of shares still didn't equal the total basis. Turns out the 'buy' transaction had a commission for $10.95 and Quicken apparently doesn't include it as part of the per share cost basis in the holdings view but does include it in the total basis.
No big deal. The total basis is correct. Maybe it's good to show the actual price per share paid but it would help if the holdings table also had a column for the commissions so we can see how it all adds up.