I am experiencing related/similar issues on 5.2.0.
We have a couple of custom taxonomy metaboxes that appear on the right side of our new post/page screens.
Clicking any of the checkboxes in the metaboxes cause some of the taxonomy metaboxes to disappear. Clicking another checkbox will generally toggle them back on.
Rolling back to version 5.1.8 resolves the issue for now until this can be addressed in 5.2.x
