First layer doesnt use whole model

[thorny kiln]

I have a flat spiral spring model, but when i try to print it, it doesnt use the whole model for the first layer. It only uses some spots of the model even though the model is flat at the bottom. This causes the print to fail every time

[radiant geyser]

Does it still happen if you lower it through the build plate by >=1 layer height before slicing?

[thorny kiln]

yea

happens at any hight

i can share the 3mf file if you want

[rapid lava]

Maybe your line widths are such that it thinks those sections are too small and thus eliminates them.

[thorny kiln]

Even when I cut the model where there are lines visible in Blender I have the same issue

[rapid lava]

Right, because your first layer line width might not match.