Borate,
I am currently using VideoPad Professional 8.77
My curent settings, which have not changed but have ceased to work are as follows.
Custom
.mp4
1920x 1080-1080 HD
Letterbox
Constant 29.97fps [TV NTSC]
Overlay
As I've stated, I am not an expert and found settings that worked and continued to use them.
https://drive.google.com/drive/folders/1qTSKmil_YlnNlh6rgMW5qmfFofChm3pc?usp=sharing
Nat,
It does play as it should in the preview.
Wrong place means time positions.
I have checked the graphics and am using transpare