Hello,
rendering proxies is supproted in V-Ray 3.6 only with the Instancer mode in MASH for both IPR and Production. In V-Ray 3.52 we only support proxies with MASH Instancer in the Production engine without IPR. Using MASH to distribute proxies with ReproMesh doesn’t work in both 3.6 and 3.52 version of V-Ray.