Everything is working as designed. The red line indicates you used F5 (bar settings) to make a change.

In BIAB, you will still have a cell for chord entry with two halves of that cell, and you can still enter a chord in the right-hand half. If you start a song in 4/4 but change to 2/4, anything in the second half of that cell (and those after) will not play. That's why it's greyed out. Perhaps you need to go to a measure after the 2/4 measure and do F5 and restore four beats per bar. Without knowing the song, I can't be sure.


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.