Sequencer 4.15 changes & Custom Tracks

In our project, we added custom sequencer tracks. For Wwise for exemple.

The problem is, the 4.15 change a lot of things into the runtime sequence and there is a lot of Legacy warnings.
Plus I spot a crash in coocked version into the create legacy track process, so I think I’ll need to convert our tracks to the new system.

Is there somewhere a paper explaining the new structure or better how to convert the old instance to the new template system.
Reverse engineering the code is funny only the first time and it takes a lot of time.

Thanks a lot if you can help me :slight_smile: