After Effect keeps crashing when I add animation presets.

If it's a stock preset, simply provide the name. if it is some third-party preset, explaoin what it involves and which effects/ plug-in it uses. If it works sometimes, then the conditions must be different like a different layer type, existing effects on the layer or whatever else. You need to be more specific.

Mylenium

We can't know. You have not offered any info about your system, your project, no crash info and what presets you are trying to apply. From issues with hardware acceleration to things like font problems with text presets this could be anything. you need to be much more specific.

Mylenium