# Dashboard and Discover tabs show blank page
**URL:** https://discuss.elastic.co/t/dashboard-and-discover-tabs-show-blank-page/59042
**Category:** Kibana
**Created:** [August 26, 2016, 1:47pm UTC](https://discuss.elastic.co/t/dashboard-and-discover-tabs-show-blank-page/59042 "2016-08-26T13:47:09Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@douweb](https://discuss.elastic.co/u/douweb)
#### Post date: [August 26, 2016, 1:47pm UTC](https://discuss.elastic.co/t/dashboard-and-discover-tabs-show-blank-page/59042/1 "2016-08-26T13:47:09Z")
I have a problem which is similar to [Discover tab won't load anymore](https://discuss.elastic.co/t/discover-tab-wont-load-anymore/38549) and [https://github.com/elastic/kibana/issues/5648](https://github.com/elastic/kibana/issues/5648) - apparently I'm not the only one experiencing issues.
I start with an empty Kibana index and add some data, a mapping, and previously exported visualizations.
After this, both the _Discover_ and the _Dashboards_ tabs are empty, in the debugger tools of my browser I see a request to `elasticsearch/.kibana/_mapping` with a resulting HTTP 400 Bad Request result and this data:
```
{
"status" : 400,
"error" : {
"type" : "illegal_argument_exception",
"root_cause" : [
{
"type" : "illegal_argument_exception",
"reason" : "mapper [version] cannot be changed from type [long] to [int]"
}
],
"reason" : "mapper [version] cannot be changed from type [long] to [int]"
}
}
```
Can you please advise how to fix this issue?
---
### Author:  [@tylersmalley](https://discuss.elastic.co/u/tylersmalley)
#### Post date: [August 26, 2016, 8:52pm UTC](https://discuss.elastic.co/t/dashboard-and-discover-tabs-show-blank-page/59042/2 "2016-08-26T20:52:35Z")
What version of Kibana and Elasticsearch?
---
### Author:  [@douweb](https://discuss.elastic.co/u/douweb)
#### Post date: [August 31, 2016, 8:50am UTC](https://discuss.elastic.co/t/dashboard-and-discover-tabs-show-blank-page/59042/3 "2016-08-31T08:50:34Z")
Kibana 4.5.4; elasticsearch 2.3.5.
Would the problem I have be because of the mappings I loaded?
---
### Author:  [@Omnibro](https://discuss.elastic.co/u/Omnibro)
#### Post date: [September 14, 2016, 6:40pm UTC](https://discuss.elastic.co/t/dashboard-and-discover-tabs-show-blank-page/59042/4 "2016-09-14T18:40:47Z")
I actually have the same issue with Kibana 4.5.1 and elasticsearch 2.3.3. Oddly my timelion page behaves the same way.
my error is slightly different as well:
mapper [hits] cannot be changed from type [long] to [int]
Just trying to add info to help find a solution.
---
### Author:  [@tsullivan](https://discuss.elastic.co/u/tsullivan)
#### Post date: [September 14, 2016, 11:29pm UTC](https://discuss.elastic.co/t/dashboard-and-discover-tabs-show-blank-page/59042/5 "2016-09-14T23:29:23Z")
> [@douweb](#):
>
> previously exported visualizations
What version of Kibana were the visualizations exported from?
---
### Author:  [@douweb](https://discuss.elastic.co/u/douweb)
#### Post date: [September 15, 2016, 8:43am UTC](https://discuss.elastic.co/t/dashboard-and-discover-tabs-show-blank-page/59042/6 "2016-09-15T08:43:20Z")
Hmm... it could actually be I exported them from Kibana 5 😃
Is there any way I can make them display again?
---
### Author:  [@tsullivan](https://discuss.elastic.co/u/tsullivan)
#### Post date: [September 15, 2016, 8:02pm UTC](https://discuss.elastic.co/t/dashboard-and-discover-tabs-show-blank-page/59042/7 "2016-09-15T20:02:15Z")
Hm, I am not sure. I was able to export Saved Object from Kibana 5 and import them into Kibana 4.6. I had a pretty minimal setup though, with just 1 Saved Search, a few Visualizations, and 1 Dashboard. Then went to Settings -\> Objects and clicked "Export Everything"
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 1:38pm UTC](https://discuss.elastic.co/t/dashboard-and-discover-tabs-show-blank-page/59042/8 "2017-07-06T13:38:58Z")