LTI 1.3 OIDC Auth Fails with Invalid Scope Error on Test Server

[BehnamTorabi]

For the past few months, LTI 1.3 OIDC authentication has been failing on our test servers with this error: "A requested scope is invalid, unknown, malformed, or exceeds the scope granted by the resource owner. The following scopes were requested, but not granted: openid." Everything works fine on our production server, and the settings are exactly the same. The only difference is the domain. Any idea why this is happening?