Also，I have got another problem, when I first open the project(without opening the sequence), and using section.get_channels() to get the Face’s channels, it will return None, but if I once open the level sequence, it could work, I have tested the metahuman’s control rig sequence, the issue didn’t occur. So does anything else I need to set with morph target or the sequence? Maybe it’s a bug(I have meet it both in 4.26.2 and 5.0.3)