resolve 11, beta 2: Generated Prores can not be opened...

I deliver properly, everything goes fine.. 100%, but when I click to open the video it says that the video can not be opened by quicktime and may require some additional software to open it

It is a standard Prores 422, HD 30fps, nothing special, and it works fine with other projects.

Any idea ? Somebody experienced this already ?

mm.. rendered removing all the nodes, and it works.. I adding the nodes back one by one

found the issue, with beta 2 I have some phantom drive that appear, and some that.. disappear.. mmmm..