Hello @back2jack
Thank you for reaching out on the community and telling us about your issue. I do apologize for the issue you're having. It is odd that he account isn't syncing anymore. One thing that we could try is deselecting the investment accounts from syncing and then again resetting the accounts. Afterwards we can try re adding the investment accounts again to see if they're able to be synced. Although you've kind of done this in your previous attempt could you try it once more so we're able to see if they have the issue again. Once you get a chance let us know how it goes! If you do have more issues we'll see what we can try next.
Thanks,
Quicken Francisco