64gb over 4K is going to be tough. Not all Coffeelake CPUs will do this.
Lower frequency to 4000Mhz from 4133 and see if things improve.
Here is a previous venture on the Maximus Formula (Z390) for 4x8GB 4266 GSKILL. This alone required some concessions to tertiary timings to find stability.
VCCSA is CPU specific and too much voltage can hurt stability just as much as too little, so tune accordingly.
13900KS / 8200MT CAS36 / ROG APEX Z790 / ROG TUF RTX 4090