Fix #10701: No explanation when placing door over unsuitable track

distribution/changelog.txt

@@ -8,6 +8,7 @@
 - Change: [#21715] [Plugin] Remove access to the internal `owner` property. Note: `ownership` is still accessible.
 - Change: [#21855] Cheats menu dropdown no longer requires dragging.
 - Fix: [#866] Boat Hire boats get stuck entering track.
+- Fix: [#10701] No reason specified when placing door over unsuitable track.
 - Fix: [#19559] Custom rides with long descriptions extend into lower widgets.
 - Fix: [#21696] Fullscreen window option not correctly applied on macOS.
 - Fix: [#21787] Map generator heightmap should respect increased height limits.

src/openrct2/actions/WallPlaceAction.cpp

@@ -585,6 +585,7 @@ GameActions::Result WallPlaceAction::WallCheckObstruction(
             case TileElementType::Track:
                 if (!WallCheckObstructionWithTrack(wall, z0, tileElement->AsTrack(), wallAcrossTrack))
                 {
+                    MapGetObstructionErrorText(tileElement, res);
                     return res;
                 }
                 break;