Hi @filipc,
i was looking your pictures with dr900s and i’m jealous 
You don’t have time lapse between gps and picture.
i bought https://help.mapillary.com/hc/en-us/articles/360029012811-BlackVue-Mapillary-Dashcam-
i use “mapillary tools” (https://github.com/mapillary/mapillary_tools#command-specifications BlackVue, Direct Upload (Recommended) without specials issues but i have time lapse between picture and gps.
For example, on the picture it’s a crossroad (Mapillary) but on map ther’s a 10 pictures différence.
Mapillary told me be email it’s a known bug but you didn’t have it ? Do you have a special way to do your video upload on mapillary server ?
Thanks