True, i noticed this today… and multiplayer games are havin issues, disconecting players in the middle of the games and players can’t join a lobby sometimes
The cost of the foundation of any building is not returned when you group-delete it with Shift+Del. This works on a single building and on multiple buildings, if you use the use Shift+Del. If you single-delete them (only Del key) it works fine (unchanged).
Reproduction Steps:
Here’s how to reproduce the problem:
Start a new game
Build any building (one time or multiple times) but do not complete the building, leave the foundation at 0% to 99%.
Click on a foundation and press Shift+Del - No resources returned.
Do the same as step 3, but press only Del (Single-delete). You get resources back as expected.