Hello @Shant Hagopian and thanks for reaching out. If Azure AD B2C is redirecting, you to https://localhost:5001/signin-oidc it means the URL is still registered in the app registration. Otherwise, you would get a AADB2C90006 error.
Collect a network trace in the browser to see if the URL is being sent as a param by the application or by B2C. If it's by the application, review the code and configuration to update it. If it its by B2C please open a support request and request it to be assigned to Alfredo Revilla, that's me :)
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