I have been runnigb Leap 15.1 on Virtualbox 5.2.28 on Win10 with no issues and with guest additions installed from the repositories. Upgraded to 15.2 Alpha and guest additions stopped working.

I reinstalled guest additions and still no luck (also tried uninstalling, rebooting and reinstallin). No shared clipboard and no "screen resizing" (either by left clicking on the screen icon or by manually resizing the window). Resizing the screen via the LXDE control center does work. Virtualbox guest addituons is 6.1.2.

I realize 15.2 is Alpha, and VB 5.2.28 is not the latest.

Anyone got any ideas?