Note: It appears that "assume" is the correct term to use for your situation, not "inherit" or "roll over." See this link to Vanguard's info on this topic:https://investor.vanguard.com/inherit/ira
Jim, You are brilliant, and I am embarrassed. What a rookie mistake (and I'm NOT a Quicken rookie by any stretch). You are absolutely correct, there was a very similarly named (zero balance) hidden account into which the shares were transferred. This is an artifact of a few years ago when Vanguard made us change our IRAs to "IRA Brokerage" accounts.I restored to the backup and repeated the Share Transfer. Now it seems your advice in your first post worked perfectly. Everything is now copacetic, thanks to your lateral thinking.I apologize for my dumb error--admittedly with the recent sudden loss of my husband my brain is not quite firing on all cylinders. This a good reminder to be extra careful with any financial transactions or decisions in the upcoming weeks until I'm sharper mentally.Again, thank you so much for the prompt replies and extremely thorough treatment of my question. I am very appreciative of your help.
May I recommend that you rename any of the old "similarly named" defunct account names so they can't be used again, accidentally, at least not easily?Just rename the account name and put a "Z" or "~"(tilde) character in front of the name, e.g. "~Vanguard IRA". That pushes the account to the very bottom of any selection lists, below any live accounts.Also please don't forget to customize the Portfolio views (under the Investing tab), to remove old accounts from the view and rearrange the order in which the new accounts show in the view.