Update properties-catalog.md

adding an additional known issue

memdocs/intune/configuration/properties-catalog.md

@@ -132,6 +132,8 @@ Collection of properties can only be stopped (deleted) at the category level.
 
 To stop collecting properties, navigate to the **Properties catalog** profile, and remove collection for every property in a particular category.
 
+If a properties policy is deleted, you will be able to see the last-collected data in Resource Explorer for up to 28 days.
+
 ## Supported Properties
 
 Inventory supports the following entities. To learn more about what properties are supported for each entity, see [Intune Data Platform Schema](../../analytics/data-platform-schema.md).
@@ -163,4 +165,4 @@ You'll see a **Resource Explorer** tab for Intune collected data and a **Resourc
 
 ### How can I troubleshoot this feature?
 
-Client logs are available at `C:\Program Files\Microsoft Device Inventory Agent\Logs` and logs can also be collected via Collect MDM Diagnostics.
+Client logs are available at `C:\Program Files\Microsoft Device Inventory Agent\Logs` and logs can also be collected via Collect MDM Diagnostics.