Note: because of some changes and improvements made recently in Duik, the provided character may not be correctly recognized by the NLA. The issue is that Duik won’t recognize these old controllers when creating new clips or setuping a new NLA; this is easy to workaround: just select the controllers manually before creating new clips or setuping the NLA.

Find the details about the After Effects bug with the layer out points here.

Note: don’t forget you can select layers or properties before setuping the NLA, to include only these layers or properties. Most of the time if something breaks when clicking the NLA button, it can be fixed by including only the needed layers or properties (the controllers of the character for example).