Absolutely loving ST4, thank you Peter.

Two issues I haven't seen mentioned elsewhere:

1. After importing audio regions from Logic markers, those regions get doubled—two of each region.

Immediately after importing audio regions:

When returning to it after clicking away:

If I then re-import those audio regions, they will usually work correctly. (Sometimes it'll be fine for a while and then the doubles will reappear.)

On playback, those doubled regions play in parallel:

If the Playback Mode is set to Continue, everything is fine. But the duplicated regions don't inherit the Playback Mode setting from the original one, so Pause or Repeat don't work (playback follows the logic of the duplicated regions).

2. Is there a limit to how many Audio Regions a song can have?

I have a long medley where the last few Logic Markers aren't converted to ST4 Regions.
And in ST4's Edit Audio Regions pane, the + is greyed out, preventing me from manually adding more.

I mocked it up here with a dummy song with 30 Logic markers that only became 25 St4 audio regions:

Thanks!