Hello Bluedalek,
Thanks for addressing us with your concern.
From what I see, you uploaded several multicolor files to your profile, but the issue is with the .dae format.
The model was checked and it had some minor design errors that needed amendment. These issues could also affect the proper rendering of colors by our automatic fixing tool in the 3D lab. Your model in the .dae format includes colors and not textures.
Together with your model you can also store the texture in a separate image-file (GIF, JPG or PNG) and a map-file (OBJ). Then you can group all files related to the model into a ZIP file and upload it to our 3D print lab.
Have you tried uploading the model with textures?
Regards,
Ivan
Customer support officer