[2020] Trade Site not reflecting Cluster Jewel's corrupted status?

I've now had 20 people message me about this damn jewel. The first 6 cancelled at the trade window when they saw it was corrupted.

Every single person said it did not show up as corrupted on the trade site. Nor was it filtered out with the "Corrupted: No" filter enabled.

Are all cluster jewels like this? Is it a known bug?

Highly annoying.