Oh ok, then could you please raise support case? We will need to check it on your orgs and debug it.
Could you please check Build versions on both the orgs, i.e. Production and Developer org, do they have same version or different?, if the versions are different, then you will get this error.
The verstions in both production and dev are the same.
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We were able to solve the problem by removing the Login IP restrictions on the user profile in production.
Thank you all for helping!