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USB formatting issue macOS Sierra 10.12.2

Joined
Apr 28, 2011
Messages
903
Motherboard
ASRock Fatal1ty Z370 Gaming-ITX/ac
CPU
i7-8700
Graphics
UHD 630
Mac
  1. MacBook Pro
Mobile Phone
  1. iOS
Does anybody else have this kind of issue regarding the usual process of formatting USB pen drives from Disk Utility on 10.12.2?
This is happening in any usb port, with any kind of usb pen drive, using any type of format.
full

My specs
ASRock Fatal1ty Z170 Gaming-ITX/ac
Intel i7 6700
32 GB ram
Clover Uefi install (EFI folder attached down here)
USB SSDT.aml generated with cnrd script
 

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  • EFI Fatal1ty ITX.zip
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Joined
May 18, 2017
Messages
3
Motherboard
Gigabyte GA-Z170X-Designare
CPU
i7 6700K
Graphics
EVGA GeForce GTX 1060 06G-P4-6267-RX 6GB
Mac
  1. iMac
  2. MacBook
  3. MacBook Pro
Had the same issue on my MacBook pro Sierra, It is a new Scandisk 16gig Ulta USB 3.0. pre formatted with Boot partition and FAT. I tried many time.
In the end I took it over to my OLD 2009 iMac running El Capitan and it erased /formatted first time.
Don't know its just an issue with the Sierra or MacBook Pro or Pre format or all of the above. Hope this helps
 
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