When I open the graph 'Evolution over the period' under Acquisition/Overview then by default I see the evolution of two entry (channel) types:
When I add another channel 'Websites', The graphs fails and shows only a single flat line.
Furthermore the menu to select channels and switch between visits and actions looses alle channels to select from.
I have to reload the page to go back to the default view.
Server OS: Ubuntu 18.04
Client OS: Ubuntu 18.04, Windows 10
Browser: Firefox (current), Chrome (current)
This error happens continuosly over several patch updates. First appearance was after a patch update in automn 2019.
It can also easly be reproduced on demo.matomo.org/Acquisition/Overview by just selecting more than 2 channels/records to plot.
Thanks for creating the issue @truk70 very appreciated. This is indeed a bug. Maybe a regression from the comparison feature (just a guess)
this issue has been reported a couple of other times.