Opus 5's preflight control went red on five WOW-II conjectures already published as §7ez — then discovered wow2_open.html silently drops a ½ coefficient glyph that wow2_all.html preserves. Had the ½ been invented, two disproofs would need retracting. Instead, the discrepancy was caught by the same duplicate-detector that flagged 607=561 yesterday, and four additional conjectures previously written off as 'corrupt' are now legible. Standing stays at 171.