# Cant delete OSM buildings area with CesiumCartographicPolygon

**URL:** <https://community.cesium.com/t/cant-delete-osm-buildings-area-with-cesiumcartographicpolygon/29589>\
**Category:** Cesium for Unreal\
**Created:** [January 28, 2024, 9:29am UTC](https://community.cesium.com/t/cant-delete-osm-buildings-area-with-cesiumcartographicpolygon/29589 "2024-01-28T09:29:01Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Yuval\_Dorfman](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/yuval_dorfman/32/21704_2.png) [@Yuval\_Dorfman](https://community.cesium.com/u/Yuval_Dorfman)\
**Post date:** [January 28, 2024, 9:29am UTC](https://community.cesium.com/t/cant-delete-osm-buildings-area-with-cesiumcartographicpolygon/29589/1 "2024-01-28T09:29:01Z")

</div>

When i add a “CesiumCartographicPolygon” to the scene then add a “CesiumPolygonRasterOverlay” component to the “Cesium World Terrain” it deletes the spline area no problem, but when i add the “CesiumPolygonRasterOverlay” component to the OSM Buildings actor it does not delete the OSM buildings in the spline area. what am i doint wrong?

 ![image](https://global.discourse-cdn.com/cesium/original/3X/6/8/68fe6b663fce8ee9fe9350626828077a98a3b11d.png)

---

<div class="post-metadata">

**Author:** ![janine](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/janine/32/5135_2.png) [@janine](https://community.cesium.com/u/janine)\
**Post date:** [January 29, 2024, 6:14pm UTC](https://community.cesium.com/t/cant-delete-osm-buildings-area-with-cesiumcartographicpolygon/29589/2 "2024-01-29T18:14:16Z")

</div>

Hi @Yuval_Dorfman,

Your settings look correct, so I’m not sure what the problem is from a glance. As a sanity check, can you click “Refresh Tileset” on Cesium OSM Buildings to make sure that the overlay is actually applied?

We actually have a sample level in the [Cesium for Unreal Samples](https://www.unrealengine.com/marketplace/en-US/product/cesium-samples) that clips a part out of Cesium OSM Buildings. It’s the level called `08_CesiumClipping`. Maybe it’s worth comparing the setup to your project in case something is different or missing?

---

<div class="post-metadata">

**Author:** ![Yuval\_Dorfman](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/yuval_dorfman/32/21704_2.png) [@Yuval\_Dorfman](https://community.cesium.com/u/Yuval_Dorfman)\
**Post date:** [January 29, 2024, 6:58pm UTC](https://community.cesium.com/t/cant-delete-osm-buildings-area-with-cesiumcartographicpolygon/29589/3 "2024-01-29T18:58:36Z")

</div>

your sanity is fine, i clicked refresh Tileset 10 times, didn’t help.  
I checked out the sample project and I’m doing everything exactly the same.