How do I stop UE deleting all my DMX Keyframes?

In packaged game it doesnt work DMX wiht sequencer, Here are warnings from the log.

LogDMXRuntime: Warning: Patch removed from DMX Library. Corresponding DMX Channel removed from sequencer.

MovieSceneDMXLibrarySectionLog: Warning: UMovieSceneDMXLibrarySection: :UpdateChannelProxy: Removing a null Patch.

Any ideas how to solve this?

So i find where is a problem. Problem was a sequencer and way which im created him. The sequencer cant be create by BP function in BPS. It must be in level like a actor and i think that even others references in BPS crashes the package project. So my solution is place sequencer actor in a level and in level blueprint play/stop him.