Do you possibly have any Audio recording that you exported at any stage. Try disabling Audio, make sure that tracks are NOT frozen, and be sure to Regenerate the song (don't just press Play).

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BIAB & RB2026 Win.(Audiophile), Windows 10 Pro & Windows 11, Cakewalk Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Session Keys Grand S & Electric R, Kontakt, Focusrite 18i20, KetronSD2, NS40M, Pioneer Active Monitors.