Do you have the latest version of Decoder Pro installed?
Or maybe it is possible that either the decoder is so new (we know it is new since it E24 connector is new to Digitrax) that the definitions are not yet included in the Decoder Pro?
I'm not familiar with that decoder so I looked it up on Digitrax website. What seems confusing is that the instruction sheet on
https://www.digitrax.com/products/mobile-decoders/dn1137e24/ states "13 FX3 Functions, 200mA capacity" but the CV definitions only show 5 functions (F0F, F0R and, F1, F2 and F3)