Thanks Archie for all the help.
This morning I delete all of the \obj and \bin files.
Right clicked AdvancedHMI in the solution explorer.
selected clean
3 succeeded, 0 failed, 0 skipped
selected rebuild
3 succeeded, 0 failed, 0 skipped
Did the same to AdvancedHMIControls.
2 succeeded, 0 failed, 0 skipped
Did the same to AdvancedHMIcs
3 succeeded, 0 failed, 0 skipped
Did the same to AdvancedHMIDrivers
1 succeeded, 0 failed, 0 skipped
Opened the main form.
All controls are there and looks good.
Hit start
The main form loads with only the AdvancedHMI logo in the upper right corner.