@hundread1800
I think that is intended due to the limited size of the map at all.

Hi @hundread1800 , yeah okay they are in the warehouse in a new game, but they still only give me 5 charges for each building and are then destroyed even though their german item name says (bleiben erhalten) what translates to something like "will remain".
Therefore I would believe that either the items are not working as intended or I seriously misunderstand something....

Hi @aorus2017, i don't have your menu bug, therefore i'n not missing the button for the building, but the legendary item should be either a permanent unlock or a usable item with multiple/infinity amount of uses.
The german translation states in the item name, that it won't be destroyed after use but it still retains the "destroyed after use" effect and it is for me a really expensive one time use object and therefore bugged or otherwise misleading.

In the scenario i've bought 2 out of the 3 legendary building for the fish farms and the forestry, both items only gave me a normal 5x charge to build the specific building.
After restarting the scenario from the menu (new game), only the last legandry building (water purifier) was in the shop, the other two missing and my building menu show a buildable amount of 0.

I used both items directly from the ship inventory. Maybe that was a mistake....