The Swift 3 received a firmware update through Windows Update. My guess is you need a firmware update though Windows Update to get it to work. But that's just a guess.
Have you set a supervisor password in the UEFI so you can unlock the advanced secure boot settings? And then add Grub to the trusted secure boot settings?
You can ask them in the link below.
If you follow the steps below and it still doesn't work, then you probably need a firmware update (you'll probably have to call Acer and ask them to work with Insyde and Microsoft to get the Swift 7 updated).
1. Create a supervisor password in the UEFI settings
2. Make sure secure boot is enabled in the UEFI settings
3. Enable the F12 boot menu in the UEFI settings
4. Add Grub (add \EFI\ubuntu\grubx64.efi) to the trusted secure boot settings.
Good luck.
Edit: If you're desperate..........then try this.