The "Crop" utility for trimming activities with GPS data is really nice, but sadly there is no update event emitted to subscribers, so 3rd party apps are not aware of the update and thus become out of sync on the activity details.
This is more of a question to the Strava developers; would you consider adding such an update event to the otherwise great cropping tool?
Tagging @Elliott11 hoping he might be willing to pass this on to the appropriate recipient 🙂