How to properly export fbx file with animation from Blender to Unity

Hello, I use blender to make armature animations. I make actions, and put them into NLA editor. When I export fbx file to Unity most of animations don't work properly (looks like they've got wrong start-end range), I can fix it by changing range for each wrong animation (using clamp range function), but it takes a lot of time sice i've got more than 20 animations for one object. Can I somehow export it without any issues? Thanks.