Update Known-issues.md

Author: gabydreckschmidt

Known-issues.md

@@ -2,7 +2,7 @@
 
 copyright:
   years: 2017, 2020
-lastupdated: "2020-06-09"
+lastupdated: "2020-07-01"
 
 subcollection: AnalyticsEngine
 
@@ -32,6 +32,7 @@ List of known issues in the release:
 | Category | Problem | AE version | Workaround |
 |---------|---------|------------|------------|
 | UI | The Cluster Management user interface does not function well in Internet Explorer 11 | All versions | The Management user interface functions well in Chrome, Safari and Firefox. Use these browsers to access the user interface. |
+| Resizing a cluster | Resizing clusters through the UI or by using the API fails for clusters that were created before 12 May  2020. The reason is an unexpected incompatibility in the Ambari version between HDP 3.1 (used in clusters created before 12 May 2020) and HDP 3.1.5 (used in clusters created after 12 May 2020). The problem does not affect clusters that were created after 12 May 2020. Those clusters can be resized.| AE 1.2 | There is no workaround for existing clusters. You must create new clusters and resize them as required. |
 | URL to download Hive standalone JAR is broken| In Ambari, when you click **Services > Hive > Summary** and in **Quick Links**, you click **Jdbc Standalone Jar Download**, you will notice that the link is broken.| AE 1.2 | Download the JAR from the [Hortonworks repository](http://repo.hortonworks.com/content/repositories/releases/org/apache/hive/hive-jdbc/). Select the driver version that corresponds to Hive version used on your IBM Analytics Engine cluster. |
 | Yarn Application UI link to logs is broken | When you click **Yarn >  Quick Links > Resource Manager UI** in the Ambari UI and select your application on the Applications tab, you will notice that the link to the application logs at the bottom right of the page is broken. | AE 1.2 <br/> Created before end November 2019 | SSH to the cluster and run `yarn logs --applicationId <appId>`|
 | Spark History server UI - Stages | The URL to drill down into the stages of a Spark job is broken due to a bug in the Knox re-write rules. | AE 1.1 | Remove `amp%3B` from the stages URL. For example, replace the following broken re-write URL (the example uses the {{site.data.keyword.Bluemix_short}} hosting location `us-south`): `https://chs-xxx-yyy-mn001.us-south.ae.appdomain.cloud:8443/gateway/default/sparkhistory/history/application_xxxxxxxxxxx_yyyy/stages/stage?amp%3Battempt=0&id=2` by this workaround URL: `https://chs-yyy-yyyy-mn001.us-south.ae.appdomain.cloud:8443/gateway/default/sparkhistory/history/application_xxxxxxxxxx_yyyy/stages/stage?attempt=0&id=2` . |