Unable to start VMs with VGPU

Hello,
I have a vm in windows server 2019 on which I have an NVIDIA GRID vGPU grid-rtx8000-12q Ppofil.
When this vm is running, and I want to start another vm with the same NVIDIA GRID vGPU grid-rtx8000-12q profile, I get an error message saying "Insufficient resources. One or more devices (pciPassthru0) required by the TEST VM are not available on the host "

the ecc is indeed deactivated.
I am in vsphere client 7.0.2 and the vcenter is in the same version.
I have walked a lot of tracks, in vain …
Thanks for your help