When the new system came out, I thought I'd read that traceries would become disabled when you reached the next level, so that level 13 wouldn't work when you hit 131 and you'd have to immediately find level 14 ones. However, I just noticed that my level 13 (130) ones says they're good until level 140.

What's going on? Is it just that they keep working but level 14 replacements improve them, or is something happening when you hit the boundary?