I posted this last summer, and got no replies. Maybe someone different will see it this time.
Quicken seems to be unable to tell the difference between Western Asset Core Bond Fund I (WATFX) and Western Asset Core PLUS Bond Fund I (WACPX). I used to hold shares of both funds in a Morgan Stanley account, and the dividends were always assigned to the wrong fund. I had my Morgan Stanley wealth manager move all of the funds to the CORE PLUS Fund – and Quicken always assigns them to the CORE Fund.
I am running Quicken for Windows, currently on Version R53.32. This has been happening for quite a while - I finally sold the Core Fund in April 2022, transferring the money to the Core Plus Fund.