Render animation in png's give same frames When I render an animation in multiple png's blender outputs all the frames. The only problem is, all the png output files are the same. 
Thanks in advance
thx for the file, found the problem:  

two things:
1. bake cloth simulation: "Bake All Dynamics", otherwise eevee wont simulate it as  Blender would do it by pressing play in 3D View.
2. Your Render step in the Output-Menue was at 1000, so you would only get 1 frame. Just put it to 1 and everything should work fine.  

just for completness: i used "blender-2.80.0-git.957b4547aeeb-windows64" build to test it.