According to John Gallagher's "Napoleon's Enfant Terrible" (p. 48, 71-72) points out that Vandamme wasn't with Pichegru's army until after they had gone into winter quarters following the armistice. He had not observed Pichegru's mistakes or his attitudes or actions. At that time Vandamme had no knowledge of Pichegru's wrongdoings. Pichegru had come to Vandamme's aid when Vandamme had his own difficulties with the Directory and therefore Vandamme had a certain loyalty towards Pichegru. When confronted with evidendence of Pichegru's treason, Vandamme was devastated and broke off communications with Pichegru. Vandamme transferred his loyalty to Napoleon.