As you can see the Top N Visual Builder visualization for disk and cpu usage is showing just 0% for all nodes. Same goes for a lot of the other visualizations that come with the package.
What version did you upgrade from? In the 5.x to 6.x upgrade doc the beats team recommends re-importing the default dashboards and suggests that the old ones might not work anymore (breaking change).
Another update on this. Seems this is just happening for some users. However the buggy graphs are same on different browsers for users that sees the problem.
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