Keith,
After playing an SMF or a Track by track sequenced song, the keyboard is apt to be left in some abnormal (not like when first turned on) state.
The most simple way to get back on track is to push "Custom Panel" which will do a reset to the default, or to your own custom panel (if you have set up a customized panel. This will restore your split point, your APC mode,your panel mode, ETC.
Regards,
Walt