ok
yes that may have contributed to it but not sure how. always safest to check your wattage when installing a new coil.
Tip: On a new coil or one I haven't tried before I set my voltage, not the wattage. (wattage will adjust automatically). I set voltage to 3.9, to start, up to 4.2. Then I see how it vapes and adjust up or down accordingly to performance.
I dont know if your device displays wattage and voltage at the same time (most do).
Also, that T8 is a large coil (8 coils actually each with their own cotton) so I would make triple sure it is well primed. that means letting it soak for a couple minutes minimum no matter what else you do to prime it.