I am trying to use the heatmap to find new trails, by comparing my routes with the global routes. Some but not all of my routes are missing. I have seen a few other related reports such as https://communityhub.strava.com/t5/strava-features-chat/route-not-shown-on-heatmap/m-p/13444 (9 months ago) and https://communityhub.strava.com/t5/strava-features-chat/personal-heatmap-some-ebike-activities-are-no-longer-showing-as/td-p/27782.
I tried editing and re-saving one activity that I knew was missing, but it did not appear (at least not within 5 minutes). Even if this did work, it is not practical to do this for each of my ~400 activities.
This is a key subscription feature. Is there a timeline for when it will actually work as promised? I have already cancelled the auto subscription renewal; my workaround is to export my data and find a different mapping solution.