Output Problem with Video

Hi Guys.

I’ve never had trouble to export my videos of UE4 with output in AVI format, Yes something heavy but they work for me. Until the last update (4.18) I can not do anymore and I do not know how to solve the problem. I appreciate all the help you can give me because the output folder shows 3 files that are not an AVI file.

Render movie Settings

And this are the Output Files…Not AVI :confused: