DPC+ pfclear problem in Harmony Cartridge

[Evilarinho]

Hi everyone, I have a problem with pfclear (DPC+).
When I test in Stella emulator, it's works, but when I test in Atari 2600 console with Harmony Cartridge, isn't work (screen crashed).

 

When I remove pfclear, the game works, but without clear the playfield, I have some problems in screen transitions.

 

Is exist other method to clear the playfield?

 

Thanks