I have filled the progress for, and then extracted resonance from, 2 weapons to unlock patterns. First the Forensic Nightmare SMG on Friday night (which I just assmued at that point I *might* not have had the pattern one and just resonance), then the Insidious raid pulse rifle just now, which I bought from the raid chest at the end because it said I could extract a pattern. Is this another bug?
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Some weapons require multiple extractions to unlock the crafting pattern.