Thanks for the update, I'm glad to hear your problem is resolved after opening the air vent hole. Product knowledge and customer support is very important to us, so we are always here to help our customers! I understand how frustrating things can be when they don't work as expected (no matter the reason), so am happy your problem is solved.
Please let me know if you have further questions or there's anything else we can help you with.
Best regards and happy printing~ Dana