@EpsilonMaximus68Olds Are there any clues in the DataModelGenerator log? The location is in the thread below.
There are also threads here about changing a fields properties and then doing a regen will cause issues. The field has to be deleted then a regen then added back with new properties then another regen. Is that a possibility? I did that a month ago and had a checkbox the size of a text box that would read true/false 
Can you isolate a point where no new fields from there on show in a change log?
Is it consistent across your dev, test and live environments?