I am a frequently flyer into and out of ATL. I have PreCheck and have opted in to Touchless ID with both Delta and United. I get Touchless ID for every flight with Delta but only get regular PreCheck when I fly with United. I get some form of PreCheck with every flight out of ATL and always use the South Checkpoint as a result, but the type differs when I fly with Delta and United. When I asked United about this, they told me it has nothing to do with them and it is a TSA issue and I should contact TSA, but I never have any issue with Delta. Does anyone know how to deal with/fix this? Since I am always getting PreCheck regardless of which airline I am on, I'm assuming this isn't an issue with my KTN. Thanks in advance for anyone who can provide insights as to how I might be able to fix this.

PS: If there is a thread for this, I didn't see it in search. So please accept my apologies if this needs to be merged somewhere else.