I was about to ask this same question, since I had TM 2021, and it was working like a charm while reimporting directly from sketchup, now in 2022.2 it seems every time I reimport the model triggers the same effect yours do, some of the textures comes out in white, but when you modify any of the sliders (Reflection in my case) the texture comes back.
The problem is when you are working on such big files with lots of textures, I have no time to reimport and move sliders for all the materials.
PS: I have tested out reimporting and importing the whole massing again, directly from sketchup, with datasmith and also with DirecLink, the result is the same though white textures that render Black with PT, but once you move the slider the texture pops back and is fixed on the PT.
Also notice that water on this version comapre to 2021 is dull looks like plastic, unless you use higher sample numbers on PT.
I hope you guys can find and solve the issue! otherwise please keep up with the excellent work!
Best,
Julio