As of April 12th, you must go to Progress SupportLink to create new support cases or to access existing cases. Please, bookmark the SupportLink URL and use the new portal to contact the support team.
We are using Login using LinkedIn through Kinvey MIC. All browser are working fine instead of IE-11 and Edge.
Please look for both the different behavior for LinkedIn login. And try the best solution to implement or resolved this ASAP.