Hi Peter

I mean simply a style that has several Realtracks.

The access error always happens at the start of a song, usually as the second bar plays.

I tried disabling Realtrack fast generation and it makes no difference. You should know that I always use "pause until midi or key received." so I cannot play a song until generation has finished and the yellow flag appears. All my songs are frozen.

I tried a test with the Jukebox playing just four bars and left it cycling round a group of 10 songs. In this case "pause until midi or key received" was disabled. I ran the test with and without fast regeneration and the access error occurs in both cases although, as I have said, it's very intermittent. This is a good test because you can leave it running for hours if necessary.

I have also just run the same test on another (Win8.1) computer running build 430 and get the same error.

Tony