So after successfully bleeding my rear brake I am now having an issue bleeding my front brake and would be grateful of any help.

The calliper won't take the mineral oil properly, instead most of it just drips out at the valve. And then pulling the syringe just withdraws lots of air bubbles into the syringe.

The problem is definitely not the seal at the hose nor is the problem with the syringe, I've tried replacing both. Anybody had a similar problem or might know how I can fix it?