I'm at my wits end and my voice is getting hoarse from all the swears I've been directing at this hotend. Was almost done a big set of upgrades to my Tornado (cable chain, dual Z, lerdge-k board, petsfang cooler & cyclops hotend), but this cyclops+ (air) is pissing me off. I can only get it to extrude from one extruder....but the kicker is, it isn't a specific extruder, but actually the first extruder used after clogs are cleared and machine is heated up. Ex. E0: White PLA @ 200C, E1: Orange PLA @ 200C Both are fed all the way into the hotend while it is cold. Heat up cyclops to 200C Feed Orange from E1, extrudes fine. Feed White from E0, extruder grinds, no filament is taken in and nothing extrudes. Return to Orange on E1 and can continue extruding fine. Cool down. Disassemble hotend, clear orange filament from white side heat tube (lower threaded portion) Reassemble hotend. Feed filament into both sides all the way while cold. Heat to 200C. Feed White from E0, extrudes fine. Feed Orange from E1, extruder grinds, no filament is taken in and nothing extrudes. Return to White on E0 and can continue extruding fine. I heat-tightened all parts @ 260C, balls bearings are inserted and tightened down until grub screws are nearly flush to body. Am I doing something wrong?