After much trial and error I managed to get this to work.
The TX1.ini file has much more information than is necessary and can cause issues on custom setups like mine where assets are kept outside of Mame. It was also causing the game to crash out.
I stripped the ini file down to match MrDo!'s layout. Hopefully I did not strip to much.
2nd. You are using a custom file called "scanlines75x2.png" This does not come with Mame so I switched it to aperture_1_2_bgr.png Probably not what you had in mind but it works for now. Personally I would rather see it as you intended.