This has been reported repeatedly. I cannot figure out how to put in a support request so I am re-upping this.
I often have to resend email notes. This worked fine for the first 10 years I used Evernote but now it is 50% reliable.
First 1) how do I put in a support ticket about this. I cannot figure out how to do that. and
2) can this Schroedinger's Feature please be fixed. having it work part-time is very frustrating.