My version of the document, 319433-022, page 350 shows
EVEX.128.66.0F38.W0 93 /vsib
VGATHERQPS xmm1 {k1}, vm64x
I think this should be vm32x, not vm64x, since the operands are single-precision floats.
Similarly for the other two encodings of this instruction.
Please check other gather/scatter instructions that they are correct also.