Tvheadend maintained space + directory mtime

I am using Tvheadend maintained space in recording profile to remove old recordings to make space for new ones.

My Tvheadend recording configuration creates a directory per title, when Tvheadend removes a old recording the directory mtime changes, so when I view recordings directory by date in Kodi, old recording directories start to appear first because stuff has been removed from them.

Can Tvheadend recordings be recorded as single files so Kodi can still scrape the artwork? (I have never got this to work, it only seems to work if recordings are stored in directory per title)

Or can Kodi ignore directory mtime so view by date works properly?