Can't get autoinstall working

Hello. I've lately tried to create an Ubuntu Mate autoinstall USB stick however my own skills weren't enough and Google doesn't seem to list any Mate specific tutorials either.

So what i've tried is using Kickstart to create a kickstart file named ks.cfg. Then using IsoMaster i've added it to the isolinux folder on the iso. Next i've changed the txt.cfg from isolinux directory to recognize autoinstall but it doesn't seem to be working. I've also added a lang file to isolinux directory to bypass language selection. Test also display the iso as bootable.

The problem: When the iso is put onto an USB stick with appropriate tools it wont boot up from it at all. And when the iso is put into a virtualmachine it always goes straight to the live install anyway.
I've added a picture of txt.conf also.