If you have version 2012, did you try using the "Force Track to Simple Arrangement" option?

Just checking, in preferences, RealTracks, are the checkboxes on for "Speed Up" & "High Quality", and off for "Use +/-"?


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.