4.20.2 - Can't make APK without compiled .so - for all 4.20 projects

updated to 4.20.3 yesterday and now the same error is back again when packaging the project for android ASTC (Oculus-GO).
Edit: tried a few things to get it working again;

  1. delete NVPack directory
  2. re-install default AndroidWorks from Epic-directory.
  3. reboot - same error when building
  4. copy the .so and .target file (see my first post) - same error
  5. gradle-error -> run NVPACK/android-sdk-windows/tools/android.bat, click on “Deselect All”, update Extras/Android Support Repository
  6. reboot - same error.
  7. deleted the .so and .target -> same error
  8. from UE, launched the project on the GO -> works
  9. changed SDK Android version to 27 in project settings-Android
    Now it seems to work again. No idea if it was step 9, or another step/combination. Crossing fingers (again)…