For a few days I have stumbled across (different) shops, which listed 0 priced items at the top of shop search. They can't be bought, so no harm done.

(Could this probably be connected to user shops being stocked and autopriced on Kumos? Just a thought.)

I thought this was fixed, but I just came across a second shop with 0 sp items.

Today an item for 0 sP was listed on Kumos quests.

This happened on Legacy to me today.

I've just seen this happen on Legacy, too.

edit: Still happening as of the 25th

Still happening on the 2nd, and it seems like a lot more of them today?

...it's various random items in different shops.