OK, I got email from Evernote about this bug (because I had reported it). It turns out the new version that is supposed to fix the problem is actually 7.10.1 (April 3, 2019) -- which is what I have just installed. (7.10.0 was actually the latest version available an hour ago). Version 7.10.1 seems to be working much better for me. Thanks, Evernote staff!