this doesnt work for me, I still having the camera error on swivel, I cannt export a movie from Animate because there is som kind of error, only can export SWF movie and then try to export it with AE or Swivel, but AE says 
and swivel has the camera error
The issue here is that the camera in Animate is still ActionScript based. This means all camera movements WILL work in the Flash Player but once imported to say After Effects or converted to video format by a 3rd party app, the ActionScript gets stripped out losing all your camera movements. I do believe Adobe engineers are working to solve this workflow problem.
WORKAROUND: Export to video from Animate. This will result in a very large uncompressed MOV file. You can then convert it to MP4 using Adobe Media Encoder or your encoder of choice.
As for symbol names with special characters, avoid it. I have learned the hard way it can cause problems in the form of bugginess. I thought that may have fixed this but always best to avoid special characters. I was naming custom ease curves using special characters like "&" and experiencing weird buggy behavior.