When we try to add the activity, we see this error:

Exception - Cannot handle token with iat prior to 2024-06-05T13:40:51+1000

More information about this error

Debug info:
Error code: generalexceptionmessage×Dismiss this notification

Stack trace:

• line 167 of /lib/php-jwt/src/JWT.php: Firebase\JWT\BeforeValidException thrown
• line 1339 of /mod/lti/locallib.php: call to Firebase\JWT\JWT::decode()
• line 1393 of /mod/lti/locallib.php: call to lti_verify_with_keyset()
• line 3446 of /mod/lti/locallib.php: call to lti_verify_jwt_signature()
• line 57 of /mod/lti/contentitem_return.php: call to lti_convert_from_jwt()

steps to reproduce 

• add new LTI activity
• on the settings screen click "select content"
• select the course you wish to add
• click the "add content" button

Setting leeway value to 60 seconds in lib/php-jwt/src/JWT.php and this error no longer appears.

I think it should handle time issues a bit more gracefully.