instead of rendering the 20 frames of the animation it only renders the first one and stops as if it was a "render frame" and not a "render Animation"(ctrl F12) process this only happens in this project file and new projects render just fine i reduced the blend file to reproduce the error. thanks a lot.
https://drive.google.com/file/d/1ffzmnXGHPg444HA3ifM3tBQMNCM0y8we/view?usp=sharing