[DOCS] Adds dashboard known issue (elastic#129651)

* [DOCS] Adds dashboard known issue

* [DOCS] Adds dashboard known issue links

Co-authored-by: Kibana Machine <[email protected]>

Author: KOTungseth

docs/CHANGELOG.asciidoc

@@ -49,7 +49,7 @@ This section summarizes the changes in each release.
 [[release-notes-7.10.2]]
 == {kib} 7.10.2
 
-For detailed information about the 7.10.2 release, review the following bug fixes. For the breaking changes, refer to the <<breaking-changes-7.10,breaking changes in 7.10>>.
+For detailed information about the 7.10.2 release, review the following bug fixes. Before you upgrade, review the <<breaking-changes-7.10,breaking changes in 7.10>> and <<known-issue-v7.10.0,known issue in 7.10.0>>.
 
 [float]
 [[security-update-v7.10.2]]
@@ -100,7 +100,7 @@ Security::
 
 For detailed information about the 7.10.1 release, review the following enhancements and bug fixes.
 
-For the breaking changes, refer to the <<breaking-changes-7.10,breaking changes in 7.10>>.
+Before you upgrade, review the <<breaking-changes-7.10,breaking changes in 7.10>> and <<known-issue-v7.10.0,known issue in 7.10.0>>.
 
 [float]
 [[enhancement-v7.10.1]]
@@ -173,7 +173,16 @@ Uptime::
 
 For detailed information about the 7.10.0 release, review the following sections.
 
-<<deprecation-v7.10.0,Deprecations>> | <<breaking-v7.10.0,Breaking changes>> | <<enhancement-v7.10.0,Enhancements>> | <<bug-v7.10.0,Bug fixes>>
+<<known-issue-v7.10.0,Known issue>> | <<deprecation-v7.10.0,Deprecations>> | <<breaking-v7.10.0,Breaking changes>> | <<enhancement-v7.10.0,Enhancements>> | <<bug-v7.10.0,Bug fixes>>
+
+[float]
+[[known-issue-v7.10.0]]
+=== Known issue
+
+Dashboard:: 
+If you are using {kib} 7.9.x and earlier, and you upgrade to 7.10.0 to 7.17.2, all hidden panel titles now appear on your dashboards.
++
+To resolve the known issue, upgrade to {kib} 7.17.3 or later.       
 
 [float]
 [[deprecation-v7.10.0]]