We recently upgraded Kibana from 7.5 to 7.6. After the upgrade, I see a filtering or "drill down" issue on bar charts that are using terms aggregation in pre-existing dashboards.
If I try to filter or drill down by clicking on a value on a bar chart, the URL changes, the top menu (under the search bar) says the filter is applied, however, the filter gets applied only to some visualizations (such as TSVB Graph/Top N, and Map) and nothing changes on any of the Horizontal/Vertical bar charts. Currently the only way around this issue is to re-build the dashboard from scratch (Cloning does not fix the issue).
Unfortunately I can't share screenshots due to data confidentiality, and I cannot reproduce as I am no longer on 7.5. But here are the steps to reproduce:
1- Ensure you are on 7.5
2- Build a bunch of visualizations including H/V Bar charts, Metric, TSVB, etc.
3- Split the data on the bar charts using the terms aggregation
4- Ensure you can filter/drill down by clicking on one of the term values and ensure this will modify all of the visualizations in the dashboard accordingly
5- Upgrade to Kibana 7.6
6- Repeat step 4 on the pre-existing dashboard. According to my finding, the filter will be applied to all visualization types except for the Bar charts. Bar charts will remain as if no filter was applied to the dashboard.