Because the software itself is no longer being patched to bypass Instagram's new API security, even a "working" license key will likely result in a login failure banned account Fake Keys:

Regularly go to Help > Check for Updates to ensure your software version is compatible with the latest Instagram API changes. Troubleshooting License Issues If your license key isn't working after an update:

Instagram's security algorithms can detect suspicious activity patterns often caused by modified software, leading to a permanent ban of your IG account.