Hi, im getting some visual bugs. I think its changing from winter to summertime. The drop is easy to spot 
This does not happen whem im zooming in:
This isnt a one time thing, happens every year.
This bug was both in 4.1.0 and 4.1.1.
If you think this is a bug then it's best to raise it on https://github.com/elastic/kibana/issues
Please include your dashboard JSON as well as sample data and anything else we may need so that we can try to reproduce 