AFMA value not showing in DPP EXIF

For some reason the AFMA value is not showing in the DPP image info (or in photoshop). From everything I have read the set AFMA value should show in in the DPP EXIF but it is not.For the attached image I had set a value of AFMA value of -10 (per lens) set and it shows this on the Camera LCD screen when reviewing an image on the memory card. But as can be seen from the attached DPP EXIF it does not show this anywhere - anyone have any idea whats going on?
Software DPP 4.1.50.0 and DPP 3.14.15.0. Camera 5D3 lens 400/5.6.

After searching the web one more time I have now solved it - I always use back button focusing but unless you keep the back button depressed until the shutter fires it will not record the AFMA info. Logical I guess because if you just obtain AF via the back button and then release the button then AF is no longer engaged.