continuous errors on starting max with a rnbo patcher

Francesco Canavese's icon

Hi All,

i'm continuously experiencing problem loading max with a patcher that includes some rnbo~ . quite every time I obtain this:

rnbobuildserver: Unable to get gRPC URI and WebSocket port from codegen server
could not initialize RNBO classes, no response from server
error 13: Failed to create client channel
could not retrieve target API version
error 13: Failed to create client channel
Could not connect to RNBO buildserver !
rnbo~: rnbopatcher extension not found, editing of rnbo patchers disabled

after the first error, only a complete system reboot fixes (and not always) the block. Any advice? I'm on windows 11.. latest versions of max and rnbo installed.
thanks!