Website map refreshes from scratch on returning to tab

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/website-map-refreshes-from-scratch-on-returning-to-tab/
———————————————————————————
Not only does the screen refresh (starting by showing London) it repeats the routing which takes some time. I'm trying to get things done and don't have time to fool with waiting for the routing to repeat, over and over as I add data to the route.