Version 18.0.13 improves the device and website session list on a customer's record.

Searching the list now always shows results for the term you actually typed, even if an earlier search or page was still loading.
Loading more results keeps your current search and shows the sessions in the correct order, instead of mixing in unrelated entries.
If a refresh fails, the list now settles into an empty state and can be searched or refreshed again, instead of staying stuck on a loading spinner.
The website session list now has a Location or device search box, and when a search returns nothing it says No matching website sessions rather than suggesting there are no sessions at all.