If the GM Setup Measure option is active, some MIDI setup events at the start of tracks are moved to the corresponding inspector controls and hidden in the Event List when a GM MIDI file is opened. This behaviour can be disabled by adding the option "GeneralMidiSMFs=0" into TTSSEQ.INI.
 
But I'm not sure if this is supposed to happen not only with GM MIDI files but also when Cakewalk project files are reopened, so there might be something else going on in the OP's case.

For me the PG.  does not ever show on the event list , both from downloaded GM files and for all my 100's of files I made myself on an Atari. I can see buy answers here that it is possible but for me, it has never worked. 

Cactus Music
For me the PG.  does not ever show on the event list , both from downloaded GM files and for all my 100's of files I made myself on an Atari. I can see buy answers here that it is possible but for me, it has never worked. 

So all of your 100s of songs each have only one patch? You can't change to another sound in the middle of a song (like for a solo or something)?! I'm shaking my head here. Maybe that's not something you need, and that's fine. I'm just thinking maybe you have bank patch events filtered out on the event list.
 
Also, btw, this problem ONLY happens when I convert Cakewalk project files to MIDI1 files. If I could load cakewalk project files into https://www.showplay.com/ I wouldn't have to worry about this issue.

OK, time for a quick happy dance. Turns out the GeneralMidiSMFs  property doesn't work if you put spaces around the equals sign. Doh!!
 
    GeneralMidiSMFs = 0
 
It has to be in the options section and it has to be
GeneralMidiSMFs=0
 
Thank you KAV! 

This was the same answer provided in the other thread created 4 days ago http://forum.cakewalk.com/FindPost/3789097