I'm thinking that this is a bug and not a issue on real hardware, but I wanted to run it past folks here before submitting it on MT as I'm not currently seeing it listed.
I'm using MAME 0.226 on Windows 10 x64. To me, it looks like the magnification effect on the high score entry screen is mirrored. The actual magnifying glass cursor sprite appears correctly, but the effect that magnifies the letters seems mirrored and appears/moves opposite of the magnifying glass sprite.
Anyone else seeing this or is it just me?