I have an investment account and am trying to enter a Dividend Reinvestment. However Quicken won't let me indicate that the shares of the security to be bought are of the same security as those already purchased previously in the account. I have tried initially as a Dividend Reinvestment and when that failed, tried to enter just the Dividend first, then a Bought transaction, which also failed.
The first screen shot below shows the problem. I would expect a dropdown list of securities I have already bought in the Security Name field, but there is none. So I type in the name of the security, exactly as it was written in the previous successful transaction (visible at the top of the screen shot, 11/30/2016), and Quicken gives me the following error: "Please select a security whose currency matches the currency of your account."

Due to this roadblock, I also tried to first enter the Dividend by itself (that works), and then do a "Bought" transaction of the shares, but I encounter the same problem.

OK, so let's try the ticker symbol instead of the actual name:

Looks promising, I select the security and click Next, yielding a screen called "Add Security to Quicken", below. This is already concerning because the security is already in Quicken, in fact already in this very account already (see first screen shot, it was bought on 11/30/2016)

So I click Next anyways, yielding another roadblock of "You already have a security with that name":

Yes I do, because that's the one I'm trying to buy more shares of! Proof is when I look at the Account Overview - Holdings. The name and ticker symbol exactly match what I was trying to use in all previous steps above:

Help please....?
In case this is relevant, I'm using the US version of Quicken 2017 Release 4 on Windows 10, the account is in Canadian Dollars, the "Account Intent" is "Retirement" and has "Tax Deferred" set to "Yes". This security is also in several other investment accounts as well.