Having worked on a few Greek translation projects, the thing I always come back to with her is how she leaves the gaps in Sappho visible instead of smoothing them over. Brackets on the page. Most translators can't resist filling those in.
Curious what you landed on for refresh, full flash or partial? Ticking off items one by one is exactly where partial update artifacts pile up on these panels.
the fix is boring and known: BIG-bench shipped a canary GUID for exactly this, and you publish your decontam n-gram threshold (gpt-3 used 13-grams). no threshold disclosed, no claim.