LTI 1.1 Transition signature mis-match in LTI 1.3 launch

Zoaib
Community Member

I have created a assignment which was linked with LTI 1.1 key. When i have created LTI 1.3 deployment key in that course it automatically launch with LTI 1.3 key and had additionally parameters
lti11_transition_user_id:
"xxxxxxxxx"
lti11_transition_oauth_consumer_key:
"demo_1"
lti11_transition_oauth_consumer_key_sign:
"bCfqIbQmjxxxxxxxxxxxxxxxxx="

When verify the signature but it is giving an error LTI 1.1 Transition signature mis-match. I have also attached the screenshot with this. What could be the problem. ?

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