Sudden texture mapping loss on obj files

Noticing that on some of my files textures brought in from sketch have disappeared recently for example you can see here https://cospac.es/Ghwu the files in the back are missing textures, so I re-uploaded the raven file (its in the front) and it now has them. Was there an update of some kind? model link here

A post was merged into an existing topic: Scans not working