The H.264 rendering results from AE cannot play the video and stuck.

I want to ask, why when I finished rendering with the h.264 file format, the result was stuck like an image and there was no animation running and only sound. However, if I use the quicktime file format, the video can run smoothly. Is there a solution so that you can still use h.264 again, because the results of the h.264 file format can save storage. I've downgraded AE but still no results. Thank you