I faced the same exact issue when I updated Evernote today on my Note 20 Ultra. None of my images showed at first. I got "tap to download" but nothing happened when I clicked. I searched the web and got to this forum. I read what is written but nothing suggested seemed to work. I signed to Evernote on the web to see if my images were at least there as I have been saving content as images for years on Evernote and I could not afford to lose them. Thankfully, everything was there on the web version. As soon as I opened the app again to see what to do about this, the images started to load. I don't know if signing to the web version is what helped, but it is worth looking into it for those still facing the issue.