Empty "Shard Failures" error when first loading Kibana 4.4.1

Everytime I request Kibana 4.4.1 (using Elasticsearch 2.2.0) for first time, as in a new tab, I get the following screen:

Elasticsearch and Kibana logs don't show any error. Browser console (tested in Firefox) and Chrome, show following error:

config init commons.bundle.js:59454
complete in 198.27ms commons.bundle.js:59450:12
loading default index pattern commons.bundle.js:59454
Index Patterns: index pattern set to logstash-* commons.bundle.js:8976:17
complete in 400.22ms commons.bundle.js:59450:12
Error: indexPattern.fields is undefined
isSortable@https://elk.....net/bundles/kibana.bundle.js?v=9693:21355:8
getSort@https://elk.....net/bundles/kibana.bundle.js?v=9693:21362:47
__WEBPACK_AMD_DEFINE_RESULT__</getSort.array@https://elk...net/bundles/kibana.bundle.js?v=9693:21377:15
getStateDefaults@https://elk....net/bundles/kibana.bundle.js?v=9693:20929:16
__WEBPACK_AMD_DEFINE_RESULT__</<@https://elk...net/bundles/kibana.bundle.js?v=9693:20923:47
invoke@https://elk.....net/bundles/commons.bundle.js?v=9693:32090:15
$ControllerProvider/this.$get</</instantiate<@https://elk...net/bundles/commons.bundle.js?v=9693:36748:25
nodeLinkFn@https://elk...net/bundles/commons.bundle.js?v=9693:35860:37
compositeLinkFn@https://elk...net/bundles/commons.bundle.js?v=9693:35292:14
publicLinkFn@https://elk...net/bundles/commons.bundle.js?v=9693:35167:31
ngViewFillContentFactory/<.link@https://elk...net/bundles/commons.bundle.js?v=9693:58792:8
invokeLinkFn@https://elk...net/bundles/commons.bundle.js?v=9693:36401:10
nodeLinkFn@https://elk...net/bundles/commons.bundle.js?v=9693:35901:1
compositeLinkFn@https://elk...net/bundles/commons.bundle.js?v=9693:35292:14
publicLinkFn@https://elk...net/bundles/commons.bundle.js?v=9693:35167:31
createBoundTranscludeFn/boundTranscludeFn@https://elk...net/bundles/commons.bundle.js?v=9693:35311:1
controllersBoundTransclude@https://elk...net/bundles/commons.bundle.js?v=9693:35928:19
update@https://elk...net/bundles/commons.bundle.js?v=9693:58742:26
$RootScopeProvider/this.$get</Scope.prototype.$broadcast@https://elk...net/bundles/commons.bundle.js?v=9693:43923:16
commitRoute/<@https://elk...net/bundles/commons.bundle.js?v=9693:58426:16
processQueue@https://elk...net/bundles/commons.bundle.js?v=9693:42357:29
scheduleProcessQueue/<@https://elk...net/bundles/commons.bundle.js?v=9693:42373:28
$RootScopeProvider/this.$get</Scope.prototype.$eval@https://elk...net/bundles/commons.bundle.js?v=9693:43601:17
$RootScopeProvider/this.$get</Scope.prototype.$digest@https://elk...net/bundles/commons.bundle.js?v=9693:43412:16
$RootScopeProvider/this.$get</Scope.prototype.$apply@https://elk...net/bundles/commons.bundle.js?v=9693:43709:14
done@https://.../bundles/commons.bundle.js?v=9693:38158:37
completeRequest@https://.../bundles/commons.bundle.js?v=9693:38356:8
requestLoaded@https://.../bundles/commons.bundle.js?v=9693:38297:1
 <div ng-controller="chrome.$$rootControllerConstruct as kibana" class="application ng-scope" ng-class="'tab-' + chrome.getActiveTabId('-none-') + ' ' + chrome.getApplicationClasses()" ng-view=""> commons.bundle.js:40089:19

Error: Request to Elasticsearch failed: "Request Entity Too Large"
KbnError@https://elk...net/bundles/commons.bundle.js?v=9693:57416:21
RequestFailure@https://elk...net/bundles/commons.bundle.js?v=9693:57449:1
__WEBPACK_AMD_DEFINE_RESULT__</</</<@https://elk...net/bundles/kibana.bundle.js?v=9693:78291:16
processQueue@https://elk...net/bundles/commons.bundle.js?v=9693:42357:29
scheduleProcessQueue/<@https://elk...net/bundles/commons.bundle.js?v=9693:42373:28
$RootScopeProvider/this.$get</Scope.prototype.$eval@https://elk...net/bundles/commons.bundle.js?v=9693:43601:17
$RootScopeProvider/this.$get</Scope.prototype.$digest@https://elk...net/bundles/commons.bundle.js?v=9693:43412:16
$RootScopeProvider/this.$get</Scope.prototype.$apply@https://elk...net/bundles/commons.bundle.js?v=9693:43709:14
done@https://elk...net/bundles/commons.bundle.js?v=9693:38158:37
completeRequest@https://elk...net/bundles/commons.bundle.js?v=9693:38356:8
requestLoaded@https://elk...net/bundles/commons.bundle.js?v=9693:38297:1

Most importantly, this seems to be a sporadic error, as if I click in any other tab, e.g. Visualize, and then Discover again, it shows the correct logging and elasticsearch data.

Any clue why we always get this initial screen?

EDIT:

For the record, I found similar reports, with no solution provided:

That's strange. I haven't heard about yet, and I don't see anything in Github about it, but it definitely sounds like a bug of some sort. Would you mind opening an issue on the repo?

Sure, just did it: https://github.com/elastic/kibana/issues/6460

Thanks!