after upgrading ROR plugin (Kibana PRO + ES) from 1.19.3 to 1.19.5, reporting suddenly stopped working.
I previously reported the bug to Kibana community, but then after I tried to fully remove ROR plugin from Kibana and ES, it started to work again.
I am running ES version 7.5.2.
More detailed information about issue is reported here - https://discuss.elastic.co/t/reporting-stopped-working-due-to-version-conflict/237109
Thanks for any help,