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I have a Wanhao duplicator i3 plus mark 2 that always start off the print approximately 1-2mm above the build plate. Regardless of how many times I have leveled it. I use a swipe (purge line) before each print, and that is printed perfectly. The printer seem to move up between the print of the purge line and the actual print, causing the first layer not to stick to the plate.

Anyone with the same issues?