Note links from reminders emails

[CalS 5,310]

I suppose this has more to do with V10 than 6.25.1.  Anyway, I clicked on a link in a reminder email and selected open in desktop app from the panel that is displayed.  Then I got this error in EN desktop. Tried with another link and got the same message, though what appeared to be multiple time.

So somehow the link doesn't work anymore.  V10 plumbing which effected older versions I assume?