TTP 12 is not entirely compatible with APFS systems. The TTP manual states:

When running Volume Rebuild on APFS volumes, a full directory optimization is not yet available. However, directory errors can be repaired.


Jon

macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365