Part 3, Dungeon Mission 3-44: Win fifteen 5* or 6* Artifacts from Stage 10 or higher of the Dragon's Lair

I'm getting 5* artifacts, but progress is not increasing.

I've checked after completing stage 10 and getting a 5* artifact, and also after stage 12 and getting a 5* artifact - zero progress on both completions.

Can confirm getting a 5* artifact from stage 13 of the dungeon DOES count towards progress

Is the text for this incorrect saying that stage 10 or higher, should it be stage 13 or higher?