Ae Export wrong file names

Create a new project. Create compositions.
Select a couple compositions and add them to render queue.
Having them all selected in the render queue click output to and specify the destination folder.
After Effects removes all your final files names (except from the one you've just selected) and replaced them with _1.mp4, _2.mp4, etc.
To circumvent it you need to remove all the files from the render queue and add them again.
Please fix.
