Hi Dario @dcavedon,
We have a new editor in the works that will let you fix GPS positions and a number of other things smoothly. Currently our old editor is “on hold” and changes won’t be implemented. But if you don’t want to wait you can send the links to support@mapillary.com and we can delete them. Make sure to say if you want only the one photo deleted or the whole sequence that is related.
/Katrin