Hello giorgino-de,
please try this experimental version here for Catalina:
https://www.dropbox.com/s/kasfsdyfeq5ojhx/Boxcryptor_v2.29.998_Installer.dmg?dl=0
Please be aware about this known issues:
- We don't offer any support for it.
- Spotlight cannot be enabled (has been disabled because it would crash the Mac).
- Opening Dropbox online-only file fails with offline error when Dropbox app is running but fails to sync.
Best,
Yasmin