After setting the time signature to 3/4, I entered a G chord into bar 238 and a D chord into bar 245. I didn't enter any other chords anywhere else. Then I selected "Select and generate a RealTrack" from the menu and picked #856 (12 string acoustic guitar). When RB was finished generating the track, I clicked on bar 235 in the Chords window and clicked on the Play button. I could definitely hear a chord change at bar 241---most likely to the C chord.

Tom Levan (pronounced La-VAN)
BiaB 2024 Win UltraPAK Build 1109, Xtra Style PAKs 1-11, RB 2024, Windows 10 Pro 64-bit, Intel Q9650 3 GHz, 16 GB RAM, 500 GB SSD & 2 TB HDD, Tracktion 6 & 7 (freebies), Cakewalk, Audacity, MuseScore 2.1 & 3.4, Synthesizer V