Import Key from Serato to Engine

Sorry for my english, I would like to know if you have the same problem like me. When I drag playlist from Serato to Engine I lose the Keys and I can’t see them in the MCX8000 too. Can you help me? Thanks

I have had the same problem. Key information gets lost for some tracks, not others. Also, I cannot import STEM tracks into Engine which I thought were backwords compatible with mp3 files.