Hello!
The camera in Animate is one of the Advanced Layers-based features, such as Layer Parenting, Frame Filters and so on. All of them are prone to various bugs.
Personally, I don't see how the camera problems you experience can be directly or indirectly related to EDAP Tools as none of our tools do anything to the camera system, but, of course, in the mess that current Animate is everything is possible. Unfortunately, only bugs which can be reproduced can be investigated, and this case seems to point more toward some form of file/asset corruption or an unknown Animate bug.
Anyway...
Since it seems that you have already completed your project and the problem that you have is exporting it, I would suggest that you try and render a PNG sequence, which you will then recombine into a video in Premiere or another video editing application.
PNG export uses a different render method and it is very likely that the camera will work properly there.
To export a PNG sequence go to File > Export > Export Movie... and in the Save As dialog choose PNG Sequence as the file type.
Hope this helps!