Hello,
I want to delete some of the sequences I recently uploaded, but even though I click the “delete entire sequence” button, they don’t delete. Deleting photos one by one works successfully, but I can’t delete entire sequences.
Normally you can just delete the entire sequence but it take some time (1 or 2 days) before it’s visibly removed from the map.
@burakonder - If you’re still seeing the sequence as not deleted, would you mind emailing support@mapillary.com with link to the sequence you’re trying to delete?
I had this too. 
It just went into “pending” and sat there.
As a workaround, I cleared the browser cache, so that the “Delete entire sequence” button would reappear and I could quickly click on it before it could change into a “Deletion pending” label (again). In fact, the API effectively deletes images one‑by‑one because there is no true “delete sequence” request that passes a sequence key. In other words, the web app groups multiple image keys into one delete request.