Not able to login JIRA after upgrade to 9.15.2 and date import from another environment(PROD)

[Shashank Aman]

Here are the logs :

ERROR anonymous 942x106x1 - 10.164.118.219:58954,10.164.72.6 /plugins/servlet/samlconsumer [c.a.p.a.s.web.filter.ErrorHandlingFilter] [UUID: ede4367d-2ab9-4ff7-891a-5dde9b99ab4a] Received invalid SAML response: Signature validation failed. SAML Response rejected
com.atlassian.plugins.authentication.sso.web.saml.provider.InvalidSamlResponse: Received invalid SAML response: Signature validation failed. SAML Response rejected
  at com.atlassian.plugins.authentication.sso.web.saml.provider.impl.OneloginJavaSamlProvider.lambda$extractSamlResponse$1(OneloginJavaSamlProvider.java:97)
  at com.atlassian.plugin.util.ContextClassLoaderSwitchingUtil.runInContext(ContextClassLoaderSwitchingUtil.java:48)
  at com.atlassian.plugins.authentication.sso.web.saml.provider.impl.OneloginJavaSamlProvider.extractSamlResponse(OneloginJavaSamlProvider.java:88)
  at com.atlassian.plugins.authentication.sso.web.saml.SamlConsumerServlet.doPost(SamlConsumerServlet.java:98)

Please suggest us some solution to solve it.

Thanks

[Matt Doar _Adaptavist_]

If you are using the built-in SAML config page, the values are different for prod and non-prod instances. You would need to log in as a non-SAML admin and update the SAML settings for that environment back to what they were before.