Crazy adaptor assembly dude! It looks like you jammed the top of a green gas can into a compression fitting with a chain of parts to adapt to the valve assembly of a sawn torch.
That doodad you removed from the tank probe is a pressure reduction feature which prevents liquid from spraying out your torch. It's dangerous to have mist spraying out a torch head because it expands like crazy and results in big uncontrollable plumes.
Some years ago I posted in this thread:
Scroll down for my response. It describes a major difference between some typical Taiwanese magazine builds vs. typical Japanese mag design in regards to filling features.