textproc/kibana6 not starting after upgrade to 6.3.2

[Kernel Panic]

Hello all,

I've upgraded all our Elasticsearch cluster components from 6.2.4 to 6.3.2

The cluster itself seem fine but Kibana will not start; in the Kibana log
it shows the following:

{"type":"log","@timestamp":"2018-08-28T15:17:36Z","tags":["reporting","error"],"pid":76937,"message":"Failed
to install browser. See kibana logs for more details."}


When I enable verbose logging I don't get an error message, the last line
just shows the following:


{"type":"log","@timestamp":"2018-08-28T15:31:26Z","tags":["reporting","debug","exportTypes"],"pid":77142,"message":"Found
exportType at
/usr/local/www/kibana6/node_modules/x-pack/plugins/reporting/export_types/csv/server/index.js"}

Any help much appreciated.