[8.15] [DOCS] Add known issue for 8.15.0 (fixed in 8.15.1) (#191533) (#…

…191584)

# Backport

This will backport the following commits from `main` to `8.15`:
- [[DOCS] Add known issue for 8.15.0 (fixed in 8.15.1)
(#191533)](#191533)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

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Co-authored-by: Liam Thompson <32779855+leemthompo@users.noreply.github.com>

docs/CHANGELOG.asciidoc

@@ -111,6 +111,19 @@ Use the *Workflows* app in Microsoft Teams to create a new webhook URL, as descr
 Update your Microsoft Teams connector to use the new URL before the end of December 2024.
 ====
 
+[discrete]
+[[known-189283]]
+.Incorrect index errors related to inference endpoints
+[%collapsible]
+====
+*Details* +
+In 8.15.1, we fixed a UI bug where an index error about the `semantic_text` field would be incorrectly displayed when the inference endpoint was configured and available.
+
+You can ignore this error if you've confirmed that the inference endpoint is configured and the model is deployed.
+
+This bug is fixed in {kibana-pull}189283[#189283].
+====
+
 [float]
 [[deprecations-8.15.0]]
 === Deprecations