That's already how filter works.
In the attached image all devices are displayed even if only one is filtered.
Are you using latest release?
The problem persists even after installing version 4.2.
The route trace is correct but the other devices are still displayed on the map.
I think you are calling a "filter" something that's NOT a filter.
OK, thanks for the help.
Your work is precious to us.
Is it possible to hide all devices that are not in the filter?
filtering just one I see all on routes.
https://ibb.co/txgkdjt