Create an informative issue (See each section, incomplete templates/issues won't be triaged)

Using the current documentation as a model, please complete the issue template. 

Note: Doc team updates the current version and the two previous versions (n-2). For earlier versions, we will address only high-priority, customer-reported issues for releases in support.

Prerequisite: Start with what we have

Always look at the current documentation to describe the change that is needed. Use the source or portal link for Step 4:

 - Use the Customer Portal: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes

 - Use the GitHub link to find the staged docs in the repository: https://github.com/stolostron/rhacm-docs 

Describe the changes in the doc and link to your dev story

Provide info for the following steps:

1. - [x] Mandatory Add the required version to the Fix version/s field.

2. - [x] Mandatory Choose the type of documentation change.

      - [x] New topic in an existing section or new section. Add a new topic in troubleshooting for Search https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.10/html-single/troubleshooting/index#trou[…]emory .

      - [ ] Update to an existing topic

       - [x] Add verification at the end of the task, how does the user verify success (a command to run or a result to see?)
     
       - [x] Add link to dev story here: https://issues.redhat.com/browse/ACM-8529

4. - [ ] Mandatory for bugs: What is the diff? Clearly define what the problem is, what the change is, and link to the current documentation:

If app topology has missing clusters, but the clusters are actually active, it might be that the cluster nodes are not present in the Search database.
Workaround; Indexer pod will need to be restarted to get the clusters back in. Topology will start showing clusters after the change.

Related issue: https://issues.redhat.com/browse/ACM-8529

Slack thread: https://redhat-internal.slack.com/archives/C05KPMFKDFX/p1714048880436999