Using horizon orbs changes map tier and renders them unusable

Used a horizon orb on a T7 Lair map, became a white map with no tier shown.
Trying to place it in the map device, gives the error "Item is unusable.

https://imgur.com/a/X7uyXzf

done in-game report on this with bug report number #3.882.280.610.

seems to be related to vinktar square vendor recipe still existing but 3.19 being the first patch ever to remove courtyard map making it impossible for vinktar square to find a base if courtyard was not in the map pool still.

Same here. Some T7 maps turn to Courtyard maps without any tier after using Orb of Horizons or after selling old T7 maps to a vendor on Standard.

I've placed 3 no tier maps to maps tab, they fell into Guards maps section and are gone: section counter shows there are 3 maps in a section, but all cells are empty.

*push*

Just found out I can't play "The Vinktar Square" after taking so long SSF to get one. I get the "Item is unusable." message as well. :/