Currently windows versions 23H2 ( update kb5044285 and beyond ), as well as 24H2 are unsupported. If you are on one of these versions you need to downgrade. Refer to this to check your windows build https://youtu.be/9tN3cf7jx34
You clearly have a talent for editing, but you have used too many effects. In particular, the biggest mistake you made was using too many effects before you kill someone, making the video unclear and hard to watch.
