Apologies for any inconvenience. Could you please attempt to log in using the same email or user ID associated with your projects? This is important as your projects are linked to your login credentials. For instance, if you initially created a project with a Facebook login and later accessed Adobe Express with Google, a new account with different projects might be inadvertently created. The same principle applies if you log in with two distinct accounts.
If the above step does not resolve the issue, consider duplicating the project and retrying. Additionally, could you try logging in from a different network or Wi-Fi to see if that resolves the issue?