Here are some of the executed guards at Dachau wearing the more standard uniform. Why the two different styles were present I don't know. Maybe the simple explanation is that some of the guards thought it looked cool to wear camo.

Dachau liberation

Another photo of the dead SS guards at Dachau. These appear to be wearing some sort of camo smock or jacket over a regular uniform.

New York City celebrating the surrender of Japan. They threw anything and kissed anybody in Times Square. August 14, 1945. Lt. Victor Jorgensen. (Navy) NARA FILE #: 080-G-377094 WAR & CONFLICT #: 1358