My Fidelity CMA account had the wrong balance in Quicken for months, but I didn't have time to investigate it until yesterday.
It turned out that there were transfers from the CMA account to a specific credit card account(CC) were in the credit card account register but not in the CMA account that the funds were coming from.
I did some research and discovered there was a transfer field, so I enable that in the register view, and I found a few transfers in the CC account with red arrows on them. I clicked on the arrow with the hope that would prompt me to create the other side of the transfer since category was "transfer:[cma]" ie it was correct. But I just told me it was broken.
I was able to manually fix it by creating the other side of the transfer in the CMA account, and Quicken detected the matching transaction in the CC account.
My question is if there is a way for Quicken to surface issues like broken transfers to the surface of the user interface, so that I'm aware of them. I enabled the transfer column on all of my registers and reviewed them, but I'm hope that I don't need to do that on a regular basis