MultiBeast fails to mount EFI on 10.11/NUC5i5RYH

[davorin]

Hello

I followed this guide to install El Capitan on my NUC5i5RYH:

https://www.tonymacx86.com/threads/guide-el-capitan-on-the-intel-skylake-nuc.183839/

Install went fine.....but when using MB and click on "build" it fails with "Mounting EFI failed. Exiting.", although EFI partition is already mounted...

The same also applies when going with macOS Sierra....

 

[P1LGRIM]

See https://www.tonymacx86.com/threads/multibeast-failure-reporting-v6-and-later.112733/