I’m using the latest official version 2.1.8. When I drag a file from my traktor library (user location) to rekordbox the app is crashing. I tried it with 2 different files.
I’m using MacOS Catalina on 10.15.1 (19B88), Traktor Beta Version 184.108.40.206, Rekordbox 5.7.0.
The version before 2.1.8 worked for me before. I cannot remember the version number, but tried it several times without an issue.