Today I registered rcloneview 1.0.476 on my Mac.
After closing rcloneview and starting again, the license was lost.
I registered it again and got a verification code to my e-mail.
All worked fine until I restarted rcloneview.
After each restart I have to add the license again 
I’m having the same exact issue… after I apply the license, use the app and close it, the next time I launch it, it’s in FREE License mode again and asks me to activate… again and again and again I quit the app.
Very frustrating
Having this issue again too (on Windows 11). I have my license ley and need to reregister it after restarting rclone.
We apologize for the inconvenience this caused. We experienced a temporary issue with our license check server, which has now been resolved.
Please try again and let us know if you continue to have any trouble.
It’s unclear if it’s a popup bug or the license really non effective.
Not solved at this time.