So here's the story. I hired an artist through this site for a freelance job. I needed him to do a fairly simple rig for a static character model I built, nothing too fancy. It doesn't have face bones, or anything that would be complex to rig, but I did specifically ask the freelancer to use standard bones for the rig, as I need the model to be exportable as a standard rigged FBX file.
The artist has come to me with a number of issues, which make no sense to me. First, he said he couldn't download the model from the attachment I posted in the project messages. I uploaded it to Google Drive so he could access it. Now he's saying he can't rig it in 3ds max for some reason, and wants to rig it in Maya. This is setting off red flags for me, as I know from experience that Maya doesn't have great compatibility with 3ds Max. Also, I know for a fact that the model can be fairly easily rigged in 3ds Max, with no issues at all. I'm also beginning to be concerned that he won't use standard bones to rig the model, as I specifically asked him to do. I'm pretty sure Maya doesn't use standard bones for rigging anyways. This model can NOT have morphs, IK bones, or anything of that nature. It NEEDS to use only standard, classic bones for the rig.
Should I be concerned that this artist won't produce what I paid him to do? If he doesn't, will I need to go through a massive hassle to get my money back? Any advice would be good.