I can't answer your question, but while you wait, you might find these threads on the "Clean Wehrmacht" myth quite interesting.

/u/Jon_Beveryman on How prevalent was the "Clean Wehrmacht" myth before the Wehrmacht exhibition in 1995? And did any historians continue to push it afterwards? discussing the pervasiveness of the myth and a little about the academia surrounding it.

/u/commiespaceinvader on Just how much of the Wehrmacht was dirty? detailing how the Wehrmacht was more of an institution of the Nazi state rather than a regular army. And teaming up with /u/Georgy_K_Zhukov discussing Did the Rommel Myth and Clean Wehrmacht myth (and others) pushed after World War II come from Government level or Academia? where not only does everybody's favorite fox get some AH busting. So too does the Wehrmacht further down.

Although incidents of tensions are said to have occurred - for instance, claims that local Wehrmacht soldiers considered arresting or killing Oskar Dirlewanger for his brigade's extreme atrocities in Belarus and Warsaw - overall there were no tensions over this matter, because both the SS and the Wehrmacht were actively involved in the Holocaust. As the answers linked elsewhere in this thread indicate, the Wehrmacht was often quite willing to lend men to the SS and the Einsatzgruppen; the only real source of tension was the occasional frustration of manpower-strapped Wehrmacht officers.