Yes, there are limitations to the number of layers that can be used in Alight Motion projects, but the specific limitations may vary depending on the device's hardware capabilities and the version of the app being used.

In general, Alight Motion allows users to create projects with up to 10 layers in the free version of the app. However, the paid version of the app, Alight Motion Pro, offers users the ability to create projects with up to 200 layers.

It's important to note that the number of layers used in a project can affect the app's performance and rendering speed. If a project has too many layers or effects, it may slow down or even crash the app. To avoid this, it's important to optimize the project by using pre-rendering, simplifying layers, and using optimized rendering settings.