I am editing in Premiere, and sending an XML to a colourist working in DaVinci Resolve. We chose to colour after picture lock in order to reduce the colourist's workload. All of the tutorials I have seen recommend flattening the timeline into one video layer (eg. There and Back Again - Frame.io). However, I have several sections where the layers are neccesary, and their timing is important. This answer gives a brief overview of a possible workflow, but doesn't address the layers issue. What are the best settings or workflow to make sure that the layers can be exported for DaVinci and maintain their place in the timeline?
This video has a solution using Project Manager to export all clips individually, so that layers can be exported separately.
File > Project manager - Make sure your working sequence is selected.
Under Resulting Project> Consolidate and Transcode, source: Individual Clips
Adjust the number of handles you want (extra frames on either side of the clip)
Choose your destination path, then OK to transcode.