I am getting following error while uploading Encryption Certificate for assertion encryption. Error: Certificate expired. Please upload a new one. However the certificate is not expired (it is valid till 07 oct 2018). Please help me to identify the issue.
In previous cases we have seen this is as a UI bug. It does say the certificate is expired, but the setup could be completed and the assertion worked just fine. Try to finish the setup, ignoring the expired message, and see if the app is working fine. If not, please open a case with Support so we can troubleshoot the issue further.