We opened a bug and reviewed our SAML code and were unable to replicate the issue.
Here's the bug: https://github.com/FusionAuth/fusionauth-issues/issues/1486
If you can add any replication steps or other information to this bug, that would be very helpful. Otherwise we'll close it out in a week or so.
Latest posts made by summercurrants
RE: SAML invalid timestamp.