The 4:3 came out of FC when I changed the settings as you instructed. I didn’t change anything else. I haven’t put anything in compressor yet. This is what exported:
Format:Apple ProRes 422, 1440 x 1080, Millions
16-bit Integer (Little Endian), Stereo, 48.000 kHz
FPS: 29.97
Data Size: 81.6 GB
Data Rate: 124.77 Mbit/s
Current size:1172 x 878 pixels