the  houdiniEngine_loadAndAddHistory command used by the shelf items could fail
and hang if the Attribute editor had not been previously opened for an asset.
@@ -428,6 +428,8 @@ houdiniEngine_loadAndAddHistory(string $assetFile, string $assetName)
if(!`exists houdiniEngine_loadAsset`)
source houdiniEngineCreateUI;
+ if(!`exists AEhoudiniAssetTemplate`)
+ source AEhoudiniAssetTemplate;
string $assetNode = `houdiniEngine_loadAsset $assetLocation $assetName`;
catchQuiet(`select -replace $old_selection`);
