Hi.

A quick tip: I had an issue where the Aria player wouldn't recognize or accept the keycard I generated and saved to my desktop. I tried it multiple times with no luck and it used to work in the past. I got the following message: "This PNG file does not contain a valid ARIA license".

This turned out to be related to the browser. I'm using the Brave browser and had Shields up (blocks ads, trackers, cookies, etc.) which was interfering with the keycard generator so I was saving a garbage PNG. You'll notice an invalid PNG has no thumbnail.

If you have this issue simply deactivate all blockers temporarily while you generate and save the keycard or switch to a different browser.

Hope this helps if you're stuck.

Take care.