Barry Harris posted news regarding his workings on FB Alpha in regard to Capcom CPS1 game hardware. He finally got around to the screen clearing issue in the CPS-1 driver. After fixing the palette length and adding screen clearing code to the driver the issue is now resolved. he have also fixed the glitch in the Ninja’s sprite animation in the Japanese Quiz and Dragons. This means that after his recent updates to support the graphics mappers there shouldn’t be any more known bugs left in the CPS-1 emulation now.

Old FBA is on the left and new is on the right.