Can't save Search and Visualization in kibana

[Sam_K (Isamu Kobayashi)]

I cannot save searches and visualizations in Kibana because a forbidden error has occured.
Please let me know how to resolve.

elasticsearch, kibana : 6.5.4

[Juanma (Juan Manuel Nieto)]

Hello @Sam_K

Have you recently upgraded kibana?

Do you have X-Pack security enabled? if so , you need to give "all" permission to that space, if you are not using spaces yet and are just using the default space (shipped by default) you need to give your role "Minimum privileges for all spaces" to all as in the following picture:

I hope this help

[Sam_K (Isamu Kobayashi)]

Thank you for your help.
I don't have X-Pack security enabled.
I tried to set "read_only_allow_delete" to "false". Then my problem was solved.

PUT _settings
{
"index": {
"blocks": {
"read_only_allow_delete": "false"
}
}
}