Empty folders left in temp output directory

We've hit an issue when using OR this week where we've noticed that if an input directory has subfolders with rasters in, this folder structure is then copied in the output temp directory. When all images are uploaded to Azure, these subfolders are then left empty. We've found that if processing large quantities of data in this way, the build of empty folders in this directory can lead to gradual but serious performance issues with parallel upload threads dropping out after a fews hours after OR jobs start. Is there a way to update the code so these folders arent left behind?