PrPro / AME Image rendering
How can I preview my BRAW files in 32 bits ?
Premiere Pro uses 8bits by default for previewing any files for better performance.Go back to BRAW Studio User Guide
If you want to preview your files in 32bits, you need to go to your sequence settings and tick the checkbox "Maximum Bit Depth" under "Video Previews".
Note that this option should decrease your playback performance !