Mojave mail - this message contains attachments that are still being loaded
I just found that any time I attached a vcard or documentation and tried to send it I got this message whether it be a tiny file or a larger 25 mb file. I can send vcards by sharing but I want to be able to attach docs and send. I tried attaching then typing the recipient but to no avail. Running Mojave on a machine for last 2 years. Any suggestions? Tried restarting no luck.
I did reply to an email that I'm suspicious of in retrospect but that is the only thing different I can think of.
thanks for any advice