I am using UE 5.0, although I tested on 5.1 with the same project, and the result did not differ. After I restart my project, the animations within my anim montages (all of them) are deleted. All that remains is a white bar in place of the green bar for animations. This forces me to go back to my anim montages and place the animation sequences back in them. On 5.1, the editor crashed multiple times whenever attempting to make changes to the project regarding anim montages, such as adding them to a struct, data asset, playing them, etc.