> Seems to be a 64-bit issue. > > MAME64 0.140u3 (64-bit) has the artifact. > MAME 0.140u3 (32-bit) does not have that artifact. > > MAMEUI64 has the artifact. > MAMEUI32 does not have that artifact.
Seems clearly to be the case. If anyone can file this bug on mametesters.org I'll be quick to confirm it.