Installing Search Guard Plugin does not display any dasboards

I have been using search guard plugin in one of my project with Kibana and i have an issue after installing it. The issue is, had few dashboards created on Kibana, after installing this plugin. I am not able see any of the dashboards created earlier.

The versions which i am using

Kibana - 6.2.1

Elasticsearch - 6.2.1

Search Guard - Trial License

Need help in resolving this. Thanks in advance.