# Elastic 8.7.0 Error in Discover tab

**URL:** <https://discuss.elastic.co/t/elastic-8-7-0-error-in-discover-tab/332329>\
**Category:** Kibana\
**Created:** [May 2, 2023, 4:07pm UTC](https://discuss.elastic.co/t/elastic-8-7-0-error-in-discover-tab/332329 "2023-05-02T16:07:57Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![afmiller1](https://avatars.discourse-cdn.com/v4/letter/a/3ec8ea/32.png) [@afmiller1](https://discuss.elastic.co/u/afmiller1)\
**Post date:** [May 2, 2023, 4:07pm UTC](https://discuss.elastic.co/t/elastic-8-7-0-error-in-discover-tab/332329/1 "2023-05-02T16:07:58Z")

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Have a single node cluster up and trying to use metricbeats locally and running into this error. I haven't come across it before. What is actually broke? This is when I go into the discover tab under metricbeat and try to view the data

TypeError: t.at is not a function  
at [http://xxx:5601/61109/bundles/plugin/data/kibana/data.plugin.js:1:312992](http://xxx:5601/61109/bundles/plugin/data/kibana/data.plugin.js:1:312992)  
at Array.forEach ()  
at n ([http://xxx:5601/61109/bundles/plugin/data/kibana/data.plugin.js:1:312956](http://xxx:5601/61109/bundles/plugin/data/kibana/data.plugin.js:1:312956))  
at s ([http://XXX:5601/61109/bundles/plugin/discover/kibana/discover.chunk.0.js:1:10138](http://XXX:5601/61109/bundles/plugin/discover/kibana/discover.chunk.0.js:1:10138))  
at [http://xxx:5601/61109/bundles/plugin/discover/kibana/discover.chunk.0.js:1:10215](http://xxx:5601/61109/bundles/plugin/discover/kibana/discover.chunk.0.js:1:10215)  
at Array.map ()  
at a ([http://xxx:5601/61109/bundles/plugin/discover/kibana/discover.chunk.0.js:1:10207](http://xxx:5601/61109/bundles/plugin/discover/kibana/discover.chunk.0.js:1:10207))  
at [http://xxx:5601/61109/bundles/plugin/discover/kibana/discover.chunk.0.js:1:8442](http://xxx:5601/61109/bundles/plugin/discover/kibana/discover.chunk.0.js:1:8442)  
at [http://xxx:5601/61109/bundles/kbn-ui-shared-deps-npm/kbn-ui-shared-deps-npm.dll.js:334:27724](http://xxx:5601/61109/bundles/kbn-ui-shared-deps-npm/kbn-ui-shared-deps-npm.dll.js:334:27724)  
at t.s.\_next ([http://xxx:5601/61109/bundles/kbn-ui-shared-deps-npm/kbn-ui-shared-deps-npm.dll.js:6:33456](http://xxx:5601/61109/bundles/kbn-ui-shared-deps-npm/kbn-ui-shared-deps-npm.dll.js:6:33456))

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<div class="post-metadata">

**Author:** ![jughosta](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jughosta/32/107160_2.png) [@jughosta](https://discuss.elastic.co/u/jughosta)\
**Post date:** [May 2, 2023, 7:29pm UTC](https://discuss.elastic.co/t/elastic-8-7-0-error-in-discover-tab/332329/2 "2023-05-02T19:29:49Z")

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Hi @afmiller1,

What browser are you using? Could you please try with its latest version?

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<div class="post-metadata">

**Author:** ![stephenb](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stephenb/32/40856_2.png) [@stephenb](https://discuss.elastic.co/u/stephenb)\
**Post date:** [May 2, 2023, 7:30pm UTC](https://discuss.elastic.co/t/elastic-8-7-0-error-in-discover-tab/332329/3 "2023-05-02T19:30:35Z")

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Hi @afmiller1  
And did you do a hard shift reload? Clear Browser and Reload?

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<div class="post-metadata">

**Author:** ![afmiller1](https://avatars.discourse-cdn.com/v4/letter/a/3ec8ea/32.png) [@afmiller1](https://discuss.elastic.co/u/afmiller1)\
**Post date:** [May 3, 2023, 10:00pm UTC](https://discuss.elastic.co/t/elastic-8-7-0-error-in-discover-tab/332329/4 "2023-05-03T22:00:03Z")

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Updating fixed the issue.

Thanks

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [May 31, 2023, 10:00pm UTC](https://discuss.elastic.co/t/elastic-8-7-0-error-in-discover-tab/332329/5 "2023-05-31T22:00:05Z")

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